423115431577 has 4 divisors (see below), whose sum is σ = 432117887616. Its totient is φ = 414112975540.

The previous prime is 423115431547. The next prime is 423115431679. The reversal of 423115431577 is 775134511324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423115431577 - 2¹⁵ = 423115398809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423115431547) 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, 4501227949 + ... + 4501228042.

It is an arithmetic number, because the mean of its divisors is an integer number (108029471904).

Almost surely, 2^423115431577 is an apocalyptic number.

423115431577 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

423115431577 is a deficient number, since it is larger than the sum of its proper divisors (9002456039).

423115431577 is an equidigital number, since it uses as much as digits as its factorization.

423115431577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9002456038.

The product of its digits is 352800, while the sum is 43.

The spelling of 423115431577 in words is "four hundred twenty-three billion, one hundred fifteen million, four hundred thirty-one thousand, five hundred seventy-seven".