23276978999 has 16 divisors (see below), whose sum is σ = 24630072192. Its totient is φ = 21973599648.

The previous prime is 23276978981. The next prime is 23276979007. The reversal of 23276978999 is 99987967232.

It is a cyclic number.

It is not a de Polignac number, because 23276978999 - 2²⁰ = 23275930423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23276908999) by changing a digit.

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, 76472 + ... + 228914.

It is an arithmetic number, because the mean of its divisors is an integer number (1539379512).

Almost surely, 2^23276978999 is an apocalyptic number.

23276978999 is a deficient number, since it is larger than the sum of its proper divisors (1353093193).

23276978999 is a wasteful number, since it uses less digits than its factorization.

23276978999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152606.

The product of its digits is 185177664, while the sum is 71.

The spelling of 23276978999 in words is "twenty-three billion, two hundred seventy-six million, nine hundred seventy-eight thousand, nine hundred ninety-nine".