64234892923 has 4 divisors (see below), whose sum is σ = 64235438008. Its totient is φ = 64234347840.

The previous prime is 64234892899. The next prime is 64234892929. The reversal of 64234892923 is 32929843246.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64234892923 - 2²¹ = 64232795771 is a prime.

It is a super-2 number, since 2×64234892923² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64234892929) 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, 14061 + ... + 358702.

It is an arithmetic number, because the mean of its divisors is an integer number (16058859502).

Almost surely, 2^64234892923 is an apocalyptic number.

64234892923 is a deficient number, since it is larger than the sum of its proper divisors (545085).

64234892923 is a wasteful number, since it uses less digits than its factorization.

64234892923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545084.

The product of its digits is 4478976, while the sum is 52.

The spelling of 64234892923 in words is "sixty-four billion, two hundred thirty-four million, eight hundred ninety-two thousand, nine hundred twenty-three".