23464720563 has 16 divisors (see below), whose sum is σ = 31597303296. Its totient is φ = 15487712640.

The previous prime is 23464720523. The next prime is 23464720571. The reversal of 23464720563 is 36502746432.

It is not a de Polignac number, because 23464720563 - 2¹² = 23464716467 is a prime.

It is a super-2 number, since 2×23464720563² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23464720523) 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, 2563531 + ... + 2572667.

It is an arithmetic number, because the mean of its divisors is an integer number (1974831456).

Almost surely, 2^23464720563 is an apocalyptic number.

23464720563 is a deficient number, since it is larger than the sum of its proper divisors (8132582733).

23464720563 is a wasteful number, since it uses less digits than its factorization.

23464720563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17554.

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 23464720563 in words is "twenty-three billion, four hundred sixty-four million, seven hundred twenty thousand, five hundred sixty-three".