137507507764 has 18 divisors (see below), whose sum is σ = 264503078882. Its totient is φ = 62503412400.

The previous prime is 137507507749. The next prime is 137507507777. The reversal of 137507507764 is 467705705731.

It can be written as a sum of positive squares in only one way, i.e., 100780851600 + 36726656164 = 317460^2 + 191642^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142052727 + ... + 142053694.

Almost surely, 2^137507507764 is an apocalyptic number.

It is an amenable number.

137507507764 is a deficient number, since it is larger than the sum of its proper divisors (126995571118).

137507507764 is a wasteful number, since it uses less digits than its factorization.

137507507764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284106447 (or 284106434 counting only the distinct ones).

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 137507507764 in words is "one hundred thirty-seven billion, five hundred seven million, five hundred seven thousand, seven hundred sixty-four".