23420431172577 has 16 divisors (see below), whose sum is σ = 32593516305408. Its totient is φ = 14930840435280.

The previous prime is 23420431172569. The next prime is 23420431172581. The reversal of 23420431172577 is 77527113402432.

It is a happy number.

It is not a de Polignac number, because 23420431172577 - 2³ = 23420431172569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23420431172527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44363749 + ... + 44888562.

It is an arithmetic number, because the mean of its divisors is an integer number (2037094769088).

Almost surely, 2^{23420431172577} is an apocalyptic number.

It is an amenable number.

23420431172577 is a deficient number, since it is larger than the sum of its proper divisors (9173085132831).

23420431172577 is a wasteful number, since it uses less digits than its factorization.

23420431172577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89256140.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 23420431172577 in words is "twenty-three trillion, four hundred twenty billion, four hundred thirty-one million, one hundred seventy-two thousand, five hundred seventy-seven".