137987211712 has 28 divisors (see below), whose sum is σ = 312935284720. Its totient is φ = 59137376256.

The previous prime is 137987211707. The next prime is 137987211767. The reversal of 137987211712 is 217112789731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

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, 154003137 + ... + 154004032.

Almost surely, 2^137987211712 is an apocalyptic number.

It is an amenable number.

137987211712 is an abundant number, since it is smaller than the sum of its proper divisors (174948073008).

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

137987211712 is an equidigital number, since it uses as much as digits as its factorization.

137987211712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308007188 (or 308007178 counting only the distinct ones).

The product of its digits is 296352, while the sum is 49.

The spelling of 137987211712 in words is "one hundred thirty-seven billion, nine hundred eighty-seven million, two hundred eleven thousand, seven hundred twelve".