137812515670 has 32 divisors (see below), whose sum is σ = 254218033440. Its totient is φ = 53758229760.

The previous prime is 137812515647. The next prime is 137812515721. The reversal of 137812515670 is 76515218731.

It is a self number, because there is not a number n which added to its sum of digits gives 137812515670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939844 + ... + 1076536.

It is an arithmetic number, because the mean of its divisors is an integer number (7944313545).

Almost surely, 2^137812515670 is an apocalyptic number.

137812515670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137812515670 is a deficient number, since it is larger than the sum of its proper divisors (116405517770).

137812515670 is a wasteful number, since it uses less digits than its factorization.

137812515670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139200.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 137812515670 in words is "one hundred thirty-seven billion, eight hundred twelve million, five hundred fifteen thousand, six hundred seventy".