388870115000 has 40 divisors (see below), whose sum is σ = 911122691160. Its totient is φ = 155548044000.

The previous prime is 388870114981. The next prime is 388870115069. The reversal of 388870115000 is 511078883.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×388870115000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38882012 + ... + 38892011.

It is an arithmetic number, because the mean of its divisors is an integer number (22778067279).

Almost surely, 2^388870115000 is an apocalyptic number.

It is an amenable number.

388870115000 is an abundant number, since it is smaller than the sum of its proper divisors (522252576160).

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

388870115000 is an equidigital number, since it uses as much as digits as its factorization.

388870115000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77774049 (or 77774030 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 388870115000 in words is "three hundred eighty-eight billion, eight hundred seventy million, one hundred fifteen thousand".