388508077312 has 36 divisors (see below), whose sum is σ = 778447343520. Its totient is φ = 193515396608.

The previous prime is 388508077297. The next prime is 388508077319. The reversal of 388508077312 is 213770805883.

It is a happy number.

It is a super-2 number, since 2×388508077312² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 388508077312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388508077319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817862 + ... + 2952517.

It is an arithmetic number, because the mean of its divisors is an integer number (21623537320).

Almost surely, 2^388508077312 is an apocalyptic number.

388508077312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

388508077312 is an abundant number, since it is smaller than the sum of its proper divisors (389939266208).

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

388508077312 is an equidigital number, since it uses as much as digits as its factorization.

388508077312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5770658 (or 5770644 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 388508077312 in words is "three hundred eighty-eight billion, five hundred eight million, seventy-seven thousand, three hundred twelve".