238311916019520 has 896 divisors, whose sum is σ = 955533194035200. Its totient is φ = 49093243084800.

The previous prime is 238311916019393. The next prime is 238311916019561. The reversal of 238311916019520 is 25910619113832.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 233016475 + ... + 234036965.

Almost surely, 2^{238311916019520} is an apocalyptic number.

238311916019520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238311916019520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477766597017600).

238311916019520 is an abundant number, since it is smaller than the sum of its proper divisors (717221278015680).

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

238311916019520 is a wasteful number, since it uses less digits than its factorization.

238311916019520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020627 (or 1020617 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 238311916019520 in words is "two hundred thirty-eight trillion, three hundred eleven billion, nine hundred sixteen million, nineteen thousand, five hundred twenty".