238861809888 has 96 divisors (see below), whose sum is σ = 678193437600. Its totient is φ = 73174910976.

The previous prime is 238861809847. The next prime is 238861809899. The reversal of 238861809888 is 888908168832.

It is a tau number, because it is divible by the number of its divisors (96).

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, 132103 + ... + 703686.

It is an arithmetic number, because the mean of its divisors is an integer number (7064514975).

Almost surely, 2^238861809888 is an apocalyptic number.

It is an amenable number.

238861809888 is an abundant number, since it is smaller than the sum of its proper divisors (439331627712).

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

238861809888 is a wasteful number, since it uses less digits than its factorization.

238861809888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836044 (or 836036 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 69.

The spelling of 238861809888 in words is "two hundred thirty-eight billion, eight hundred sixty-one million, eight hundred nine thousand, eight hundred eighty-eight".