238143856956928 has 80 divisors (see below), whose sum is σ = 521109485764560. Its totient is φ = 108049624621056.

The previous prime is 238143856956917. The next prime is 238143856957033. The reversal of 238143856956928 is 829659658341832.

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, 302817675 + ... + 303603082.

It is an arithmetic number, because the mean of its divisors is an integer number (6513868572057).

Almost surely, 2^{238143856956928} is an apocalyptic number.

It is an amenable number.

238143856956928 is an abundant number, since it is smaller than the sum of its proper divisors (282965628807632).

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

238143856956928 is an equidigital number, since it uses as much as digits as its factorization.

238143856956928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606420847 (or 606420831 counting only the distinct ones).

The product of its digits is 5374771200, while the sum is 79.

The spelling of 238143856956928 in words is "two hundred thirty-eight trillion, one hundred forty-three billion, eight hundred fifty-six million, nine hundred fifty-six thousand, nine hundred twenty-eight".