388935040018 has 32 divisors (see below), whose sum is σ = 672895900800. Its totient is φ = 165154502400.

The previous prime is 388935040009. The next prime is 388935040037. The reversal of 388935040018 is 810040539883.

It is a super-2 number, since 2×388935040018² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604005 + ... + 1068967.

It is an arithmetic number, because the mean of its divisors is an integer number (21027996900).

Almost surely, 2^388935040018 is an apocalyptic number.

388935040018 is a deficient number, since it is larger than the sum of its proper divisors (283960860782).

388935040018 is a wasteful number, since it uses less digits than its factorization.

388935040018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465522.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 388935040018 in words is "three hundred eighty-eight billion, nine hundred thirty-five million, forty thousand, eighteen".