388670708640 has 48 divisors (see below), whose sum is σ = 1224312733728. Its totient is φ = 103645522176.

The previous prime is 388670708563. The next prime is 388670708677. The reversal of 388670708640 is 46807076883.

It is a tau number, because it is divible by the number of its divisors (48).

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, 404864842 + ... + 404865801.

It is an arithmetic number, because the mean of its divisors is an integer number (25506515286).

Almost surely, 2^388670708640 is an apocalyptic number.

388670708640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

388670708640 is an abundant number, since it is smaller than the sum of its proper divisors (835642025088).

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

388670708640 is a wasteful number, since it uses less digits than its factorization.

388670708640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809730661 (or 809730653 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 388670708640 in words is "three hundred eighty-eight billion, six hundred seventy million, seven hundred eight thousand, six hundred forty".