388855236672 has 672 divisors, whose sum is σ = 1403691294720. Its totient is φ = 100418641920.

The previous prime is 388855236619. The next prime is 388855236673. The reversal of 388855236672 is 276632558883.

388855236672 is a `hidden beast` number, since 3 + 8 + 8 + 8 + 552 + 3 + 6 + 6 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (388855236673) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 173362783 + ... + 173365025.

Almost surely, 2^388855236672 is an apocalyptic number.

388855236672 is a gapful number since it is divisible by the number (32) 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 388855236672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701845647360).

388855236672 is an abundant number, since it is smaller than the sum of its proper divisors (1014836058048).

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

388855236672 is a wasteful number, since it uses less digits than its factorization.

388855236672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2378 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 388855236672 in words is "three hundred eighty-eight billion, eight hundred fifty-five million, two hundred thirty-six thousand, six hundred seventy-two".