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29997985019749 is a prime number
BaseRepresentation
bin1101101001000011100110…
…01111011011011101100101
310221012210001011011011012221
412310201303033123131211
512412441333131112444
6143444514543112341
76214166014343215
oct664416317333545
9127183034134187
1029997985019749
11961608a55261a
1234459885a26b1
131397a4ab4b546
14759ca5912245
153704b2e57a84
hex1b48733db765

29997985019749 has 2 divisors, whose sum is σ = 29997985019750. Its totient is φ = 29997985019748.

The previous prime is 29997985019711. The next prime is 29997985019753. The reversal of 29997985019749 is 94791058979992.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15106296969124 + 14891688050625 = 3886682^2 + 3858975^2 .

It is a cyclic number.

It is not a de Polignac number, because 29997985019749 - 219 = 29997984495461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29997985019749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29997985013749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998992509874 + 14998992509875.

It is an arithmetic number, because the mean of its divisors is an integer number (14998992509875).

Almost surely, 229997985019749 is an apocalyptic number.

It is an amenable number.

29997985019749 is a deficient number, since it is larger than the sum of its proper divisors (1).

29997985019749 is an equidigital number, since it uses as much as digits as its factorization.

29997985019749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8332994880, while the sum is 88.

The spelling of 29997985019749 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred eighty-five million, nineteen thousand, seven hundred forty-nine".