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19506608836429 = 1113136409852003
BaseRepresentation
bin1000110111101101111000…
…11111011000111101001101
32120001210222002221110122211
410123312330133120331031
510024044013330231204
6105253113513110421
74052206644232021
oct433667437307515
976053862843584
1019506608836429
116240785174230
1222306179b8411
13ab6608402680
144b61a6a50381
1523c629551804
hex11bdbc7d8f4d

19506608836429 has 8 divisors (see below), whose sum is σ = 22916855136672. Its totient is φ = 16369182240240.

The previous prime is 19506608836397. The next prime is 19506608836459. The reversal of 19506608836429 is 92463880660591.

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

It is a cyclic number.

It is not a de Polignac number, because 19506608836429 - 25 = 19506608836397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19506608836459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68204925859 + ... + 68204926144.

It is an arithmetic number, because the mean of its divisors is an integer number (2864606892084).

Almost surely, 219506608836429 is an apocalyptic number.

It is an amenable number.

19506608836429 is a deficient number, since it is larger than the sum of its proper divisors (3410246300243).

19506608836429 is a wasteful number, since it uses less digits than its factorization.

19506608836429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136409852027.

The product of its (nonzero) digits is 134369280, while the sum is 67.

The spelling of 19506608836429 in words is "nineteen trillion, five hundred six billion, six hundred eight million, eight hundred thirty-six thousand, four hundred twenty-nine".

Divisors: 1 11 13 143 136409852003 1500508372033 1773328076039 19506608836429