137808987672 has 16 divisors (see below), whose sum is σ = 344522469240. Its totient is φ = 45936329216.

The previous prime is 137808987649. The next prime is 137808987947. The reversal of 137808987672 is 276789808731.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2871020553 + ... + 2871020600.

Almost surely, 2^137808987672 is an apocalyptic number.

137808987672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137808987672 is an abundant number, since it is smaller than the sum of its proper divisors (206713481568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137808987672 is a wasteful number, since it uses less digits than its factorization.

137808987672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742041162 (or 5742041158 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 66.

The spelling of 137808987672 in words is "one hundred thirty-seven billion, eight hundred eight million, nine hundred eighty-seven thousand, six hundred seventy-two".