15129064991 has 2 divisors, whose sum is σ = 15129064992. Its totient is φ = 15129064990.

The previous prime is 15129064957. The next prime is 15129065053. The reversal of 15129064991 is 19946092151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15129064991 - 2²² = 15124870687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15129054991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7564532495 + 7564532496.

It is an arithmetic number, because the mean of its divisors is an integer number (7564532496).

Almost surely, 2^15129064991 is an apocalyptic number.

15129064991 is a deficient number, since it is larger than the sum of its proper divisors (1).

15129064991 is an equidigital number, since it uses as much as digits as its factorization.

15129064991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 15129064991 in words is "fifteen billion, one hundred twenty-nine million, sixty-four thousand, nine hundred ninety-one".