15291425068 has 24 divisors (see below), whose sum is σ = 26953203200. Its totient is φ = 7590678480.

The previous prime is 15291425063. The next prime is 15291425089. The reversal of 15291425068 is 86052419251.

It is a super-2 number, since 2×15291425068² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15291425063) 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, 347803 + ... + 389293.

Almost surely, 2^15291425068 is an apocalyptic number.

It is an amenable number.

15291425068 is a deficient number, since it is larger than the sum of its proper divisors (11661778132).

15291425068 is a wasteful number, since it uses less digits than its factorization.

15291425068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42157 (or 42155 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 15291425068 in words is "fifteen billion, two hundred ninety-one million, four hundred twenty-five thousand, sixty-eight".