23930478277 has 4 divisors (see below), whose sum is σ = 23931862540. Its totient is φ = 23929094016.

The previous prime is 23930478269. The next prime is 23930478307. The reversal of 23930478277 is 77287403932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7363184481 + 16567293796 = 85809^2 + 128714^2 .

It is a cyclic number.

It is not a de Polignac number, because 23930478277 - 2³ = 23930478269 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 (23930475277) 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, 665868 + ... + 700885.

It is an arithmetic number, because the mean of its divisors is an integer number (5982965635).

Almost surely, 2^23930478277 is an apocalyptic number.

It is an amenable number.

23930478277 is a deficient number, since it is larger than the sum of its proper divisors (1384263).

23930478277 is a wasteful number, since it uses less digits than its factorization.

23930478277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384262.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 23930478277 in words is "twenty-three billion, nine hundred thirty million, four hundred seventy-eight thousand, two hundred seventy-seven".