238728318336 has 64 divisors (see below), whose sum is σ = 704580116400. Its totient is φ = 79576104960.

The previous prime is 238728318319. The next prime is 238728318359. The reversal of 238728318336 is 633813827832.

238728318336 is a `hidden beast` number, since 2 + 387 + 2 + 83 + 183 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 34534785 + ... + 34541696.

Almost surely, 2^238728318336 is an apocalyptic number.

It is an amenable number.

238728318336 is an abundant number, since it is smaller than the sum of its proper divisors (465851798064).

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

238728318336 is an equidigital number, since it uses as much as digits as its factorization.

238728318336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69076504 (or 69076486 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 238728318336 in words is "two hundred thirty-eight billion, seven hundred twenty-eight million, three hundred eighteen thousand, three hundred thirty-six".