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19029712497 = 317935437081
BaseRepresentation
bin10001101110010000…
…100101111001110001
31211010012202120000120
4101232100211321301
5302433101244442
612424144440453
71242400613235
oct215620457161
954105676016
1019029712497
11808585a724
123831019129
131a43671913
14cc74b05c5
157659a84ec
hex46e425e71

19029712497 has 8 divisors (see below), whose sum is σ = 25514699040. Its totient is φ = 12615600480.

The previous prime is 19029712477. The next prime is 19029712517. The reversal of 19029712497 is 79421792091.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19029712477) and next prime (19029712517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19029712497 - 28 = 19029712241 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19029712477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17718004 + ... + 17719077.

It is an arithmetic number, because the mean of its divisors is an integer number (3189337380).

Almost surely, 219029712497 is an apocalyptic number.

It is an amenable number.

19029712497 is a deficient number, since it is larger than the sum of its proper divisors (6484986543).

19029712497 is a wasteful number, since it uses less digits than its factorization.

19029712497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35437263.

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 19029712497 in words is "nineteen billion, twenty-nine million, seven hundred twelve thousand, four hundred ninety-seven".

Divisors: 1 3 179 537 35437081 106311243 6343237499 19029712497