15023431457 has 2 divisors, whose sum is σ = 15023431458. Its totient is φ = 15023431456.

The previous prime is 15023431441. The next prime is 15023431529. The reversal of 15023431457 is 75413432051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8585134336 + 6438297121 = 92656^2 + 80239^2 .

It is a cyclic number.

It is not a de Polignac number, because 15023431457 - 2⁴ = 15023431441 is a prime.

It is not a weakly prime, because it can be changed into another prime (15023431427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7511715728 + 7511715729.

It is an arithmetic number, because the mean of its divisors is an integer number (7511715729).

Almost surely, 2^15023431457 is an apocalyptic number.

It is an amenable number.

15023431457 is a deficient number, since it is larger than the sum of its proper divisors (1).

15023431457 is an equidigital number, since it uses as much as digits as its factorization.

15023431457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 15023431457 in words is "fifteen billion, twenty-three million, four hundred thirty-one thousand, four hundred fifty-seven".