389308888923 has 4 divisors (see below), whose sum is σ = 519078518568. Its totient is φ = 259539259280.

The previous prime is 389308888907. The next prime is 389308888973. The reversal of 389308888923 is 329888803983.

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

It is a cyclic number.

It is not a de Polignac number, because 389308888923 - 2⁴ = 389308888907 is a prime.

It is a super-2 number, since 2×389308888923² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389308888973) 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, 64884814818 + ... + 64884814823.

It is an arithmetic number, because the mean of its divisors is an integer number (129769629642).

Almost surely, 2^389308888923 is an apocalyptic number.

389308888923 is a deficient number, since it is larger than the sum of its proper divisors (129769629645).

389308888923 is a wasteful number, since it uses less digits than its factorization.

389308888923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129769629644.

The product of its (nonzero) digits is 143327232, while the sum is 69.

The spelling of 389308888923 in words is "three hundred eighty-nine billion, three hundred eight million, eight hundred eighty-eight thousand, nine hundred twenty-three".