389152888779 has 4 divisors (see below), whose sum is σ = 518870518376. Its totient is φ = 259435259184.

The previous prime is 389152888769. The next prime is 389152888781. The reversal of 389152888779 is 977888251983.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 389152888779 - 2⁴ = 389152888763 is a prime.

It is a super-2 number, since 2×389152888779² (a number of 24 digits) contains 22 as substring.

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 389152888779.

It is not an unprimeable number, because it can be changed into a prime (389152888769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64858814794 + ... + 64858814799.

It is an arithmetic number, because the mean of its divisors is an integer number (129717629594).

Almost surely, 2^389152888779 is an apocalyptic number.

389152888779 is a deficient number, since it is larger than the sum of its proper divisors (129717629597).

389152888779 is a wasteful number, since it uses less digits than its factorization.

389152888779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129717629596.

The product of its digits is 487710720, while the sum is 75.

The spelling of 389152888779 in words is "three hundred eighty-nine billion, one hundred fifty-two million, eight hundred eighty-eight thousand, seven hundred seventy-nine".