238685156688 has 80 divisors (see below), whose sum is σ = 672721514496. Its totient is φ = 72322024320.

The previous prime is 238685156653. The next prime is 238685156737. The reversal of 238685156688 is 886651586832.

It is a super-2 number, since 2×238685156688² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10700395 + ... + 10722677.

Almost surely, 2^238685156688 is an apocalyptic number.

It is an amenable number.

238685156688 is an abundant number, since it is smaller than the sum of its proper divisors (434036357808).

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

238685156688 is a wasteful number, since it uses less digits than its factorization.

238685156688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42592 (or 42586 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 66.

The spelling of 238685156688 in words is "two hundred thirty-eight billion, six hundred eighty-five million, one hundred fifty-six thousand, six hundred eighty-eight".