137508748640 has 96 divisors (see below), whose sum is σ = 362078125920. Its totient is φ = 49043349504.

The previous prime is 137508748627. The next prime is 137508748721. The reversal of 137508748640 is 46847805731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278707 + ... + 1382066.

It is an arithmetic number, because the mean of its divisors is an integer number (3771647145).

Almost surely, 2^137508748640 is an apocalyptic number.

137508748640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137508748640 is an abundant number, since it is smaller than the sum of its proper divisors (224569377280).

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

137508748640 is a wasteful number, since it uses less digits than its factorization.

137508748640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660824 (or 2660816 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 137508748640 in words is "one hundred thirty-seven billion, five hundred eight million, seven hundred forty-eight thousand, six hundred forty".