388523377428 has 48 divisors (see below), whose sum is σ = 956647890240. Its totient is φ = 122385600000.

The previous prime is 388523377391. The next prime is 388523377481. The reversal of 388523377428 is 824773325883.

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, 2033323 + ... + 2216178.

It is an arithmetic number, because the mean of its divisors is an integer number (19930164380).

Almost surely, 2^388523377428 is an apocalyptic number.

388523377428 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

388523377428 is an abundant number, since it is smaller than the sum of its proper divisors (568124512812).

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

388523377428 is a wasteful number, since it uses less digits than its factorization.

388523377428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249928 (or 4249926 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 60.

The spelling of 388523377428 in words is "three hundred eighty-eight billion, five hundred twenty-three million, three hundred seventy-seven thousand, four hundred twenty-eight".