8157592137 has 32 divisors (see below), whose sum is σ = 12060576000. Its totient is φ = 4878325760.

The previous prime is 8157592133. The next prime is 8157592147. The reversal of 8157592137 is 7312957518.

It is not a de Polignac number, because 8157592137 - 2² = 8157592133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8157592133) 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 31 ways as a sum of consecutive naturals, for example, 317239 + ... + 341987.

It is an arithmetic number, because the mean of its divisors is an integer number (376893000).

Almost surely, 2^8157592137 is an apocalyptic number.

It is an amenable number.

8157592137 is a deficient number, since it is larger than the sum of its proper divisors (3902983863).

8157592137 is a wasteful number, since it uses less digits than its factorization.

8157592137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25073.

The product of its digits is 529200, while the sum is 48.

The square root of 8157592137 is about 90319.3895960330. The cubic root of 8157592137 is about 2013.0473759811.

The spelling of 8157592137 in words is "eight billion, one hundred fifty-seven million, five hundred ninety-two thousand, one hundred thirty-seven".