238512998885 has 16 divisors (see below), whose sum is σ = 346344926976. Its totient is φ = 153931077888.

The previous prime is 238512998881. The next prime is 238512998989. The reversal of 238512998885 is 588899215832.

It is not a de Polignac number, because 238512998885 - 2² = 238512998881 is a prime.

It is a super-2 number, since 2×238512998885² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238512998881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200430497 + ... + 200431686.

It is an arithmetic number, because the mean of its divisors is an integer number (21646557936).

Almost surely, 2^238512998885 is an apocalyptic number.

It is an amenable number.

238512998885 is a deficient number, since it is larger than the sum of its proper divisors (107831928091).

238512998885 is a wasteful number, since it uses less digits than its factorization.

238512998885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400862212.

The product of its digits is 99532800, while the sum is 68.

The spelling of 238512998885 in words is "two hundred thirty-eight billion, five hundred twelve million, nine hundred ninety-eight thousand, eight hundred eighty-five".