23974496569 has 9 divisors (see below), whose sum is σ = 24348201381. Its totient is φ = 23606449020.

The previous prime is 23974496561. The next prime is 23974496587. The reversal of 23974496569 is 96569447932.

The square root of 23974496569 is 154837.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 23974496569 - 2³ = 23974496561 is a prime.

It is a super-2 number, since 2×23974496569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23974496569.

It is not an unprimeable number, because it can be changed into a prime (23974496561) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10372924 + ... + 10375234.

It is an arithmetic number, because the mean of its divisors is an integer number (2705355709).

Almost surely, 2^23974496569 is an apocalyptic number.

23974496569 is the 154837-th square number.

23974496569 is the 77419-th centered octagonal number.

It is an amenable number.

23974496569 is a deficient number, since it is larger than the sum of its proper divisors (373704812).

23974496569 is an frugal number, since it uses more digits than its factorization.

23974496569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756 (or 2378 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 64.

Multiplying 23974496569 by its sum of digits (64), we get a square (1534367780416 = 1238696²).

The spelling of 23974496569 in words is "twenty-three billion, nine hundred seventy-four million, four hundred ninety-six thousand, five hundred sixty-nine".