137975492865 has 24 divisors (see below), whose sum is σ = 256803367680. Its totient is φ = 63074510688.

The previous prime is 137975492849. The next prime is 137975492891. The reversal of 137975492865 is 568294579731.

It is a happy number.

It is not a de Polignac number, because 137975492865 - 2⁴ = 137975492849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 137975492796 and 137975492805.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93860145 + ... + 93861614.

It is an arithmetic number, because the mean of its divisors is an integer number (10700140320).

Almost surely, 2^137975492865 is an apocalyptic number.

137975492865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

137975492865 is a deficient number, since it is larger than the sum of its proper divisors (118827874815).

137975492865 is a wasteful number, since it uses less digits than its factorization.

137975492865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187721781 (or 187721774 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 66.

The spelling of 137975492865 in words is "one hundred thirty-seven billion, nine hundred seventy-five million, four hundred ninety-two thousand, eight hundred sixty-five".