137887899975 has 108 divisors (see below), whose sum is σ = 287478389640. Its totient is φ = 62994153600.

The previous prime is 137887899937. The next prime is 137887899991. The reversal of 137887899975 is 579998788731.

It is a happy number.

137887899975 is a `hidden beast` number, since 1 + 378 + 8 + 78 + 99 + 97 + 5 = 666.

It is not a de Polignac number, because 137887899975 - 2⁹ = 137887899463 is a prime.

It is a super-3 number, since 3×137887899975³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137887899894 and 137887899903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 23491341 + ... + 23497209.

Almost surely, 2^137887899975 is an apocalyptic number.

137887899975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

137887899975 is an abundant number, since it is smaller than the sum of its proper divisors (149590489665).

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

137887899975 is a wasteful number, since it uses less digits than its factorization.

137887899975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030 (or 8015 counting only the distinct ones).

The product of its digits is 1920360960, while the sum is 81.

The spelling of 137887899975 in words is "one hundred thirty-seven billion, eight hundred eighty-seven million, eight hundred ninety-nine thousand, nine hundred seventy-five".