15125291264 has 72 divisors (see below), whose sum is σ = 30594363072. Its totient is φ = 7462287360.

The previous prime is 15125291261. The next prime is 15125291287. The reversal of 15125291264 is 46219252151.

It is not an unprimeable number, because it can be changed into a prime (15125291261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8726942 + ... + 8728674.

Almost surely, 2^15125291264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15125291264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15297181536).

15125291264 is an abundant number, since it is smaller than the sum of its proper divisors (15469071808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15125291264 is a wasteful number, since it uses less digits than its factorization.

15125291264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2169 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The spelling of 15125291264 in words is "fifteen billion, one hundred twenty-five million, two hundred ninety-one thousand, two hundred sixty-four".