388833838057 has 4 divisors (see below), whose sum is σ = 444381529216. Its totient is φ = 333286146900.

The previous prime is 388833838051. The next prime is 388833838103. The reversal of 388833838057 is 750838338883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750838338883 = 53 ⋅14166761111.

It is not a de Polignac number, because 388833838057 - 2⁷ = 388833837929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388833838057.

It is not an unprimeable number, because it can be changed into a prime (388833838051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27773845569 + ... + 27773845582.

It is an arithmetic number, because the mean of its divisors is an integer number (111095382304).

Almost surely, 2^388833838057 is an apocalyptic number.

It is an amenable number.

388833838057 is a deficient number, since it is larger than the sum of its proper divisors (55547691159).

388833838057 is an equidigital number, since it uses as much as digits as its factorization.

388833838057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55547691158.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 388833838057 in words is "three hundred eighty-eight billion, eight hundred thirty-three million, eight hundred thirty-eight thousand, fifty-seven".