137669535252 has 60 divisors (see below), whose sum is σ = 381065689620. Its totient is φ = 43190440704.

The previous prime is 137669535239. The next prime is 137669535277. The reversal of 137669535252 is 252535966731.

137669535252 is a `hidden beast` number, since 1 + 3 + 7 + 6 + 69 + 53 + 525 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 78777894276 + 58891640976 = 280674^2 + 242676^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12491727 + ... + 12502742.

It is an arithmetic number, because the mean of its divisors is an integer number (6351094827).

Almost surely, 2^137669535252 is an apocalyptic number.

137669535252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

137669535252 is an abundant number, since it is smaller than the sum of its proper divisors (243396154368).

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

137669535252 is a wasteful number, since it uses less digits than its factorization.

137669535252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24994502 (or 24994491 counting only the distinct ones).

The product of its digits is 10206000, while the sum is 54.

The spelling of 137669535252 in words is "one hundred thirty-seven billion, six hundred sixty-nine million, five hundred thirty-five thousand, two hundred fifty-two".