137611950820 has 24 divisors (see below), whose sum is σ = 293722559928. Its totient is φ = 54142406400.

The previous prime is 137611950799. The next prime is 137611950851. The reversal of 137611950820 is 28059116731.

It can be written as a sum of positive squares in 4 ways, for example, as 190495204 + 137421455616 = 13802^2 + 370704^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56397121 + ... + 56399560.

It is an arithmetic number, because the mean of its divisors is an integer number (12238439997).

Almost surely, 2^137611950820 is an apocalyptic number.

137611950820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137611950820 is an abundant number, since it is smaller than the sum of its proper divisors (156110609108).

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

137611950820 is a wasteful number, since it uses less digits than its factorization.

137611950820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112796751 (or 112796749 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 137611950820 in words is "one hundred thirty-seven billion, six hundred eleven million, nine hundred fifty thousand, eight hundred twenty".