156925478431 has 8 divisors (see below), whose sum is σ = 158105475584. Its totient is φ = 155749734360.

The previous prime is 156925478387. The next prime is 156925478443. The reversal of 156925478431 is 134874529651.

156925478431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156925478431 is a prime.

It is a super-2 number, since 2×156925478431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156925478491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989181 + ... + 1136806.

It is an arithmetic number, because the mean of its divisors is an integer number (19763184448).

Almost surely, 2^156925478431 is an apocalyptic number.

156925478431 is the 228711-st hex number.

156925478431 is a deficient number, since it is larger than the sum of its proper divisors (1179997153).

156925478431 is a wasteful number, since it uses less digits than its factorization.

156925478431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126541.

The product of its digits is 7257600, while the sum is 55.

The spelling of 156925478431 in words is "one hundred fifty-six billion, nine hundred twenty-five million, four hundred seventy-eight thousand, four hundred thirty-one".