23412978169 has 9 divisors (see below), whose sum is σ = 27236751237. Its totient is φ = 20067348924.

The previous prime is 23412978157. The next prime is 23412978181. The reversal of 23412978169 is 96187921432.

The square root of 23412978169 is 153013.

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

It is an interprime number because it is at equal distance from previous prime (23412978157) and next prime (23412978181).

It is not a de Polignac number, because 23412978169 - 2¹³ = 23412969977 is a prime.

It is a super-2 number, since 2×23412978169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23412978469) 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, 1060162 + ... + 1082020.

It is an arithmetic number, because the mean of its divisors is an integer number (3026305693).

Almost surely, 2^23412978169 is an apocalyptic number.

23412978169 is the 153013-rd square number.

23412978169 is the 76507-th centered octagonal number.

It is an amenable number.

23412978169 is a deficient number, since it is larger than the sum of its proper divisors (3823773068).

23412978169 is an frugal number, since it uses more digits than its factorization.

23412978169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43732 (or 21866 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The spelling of 23412978169 in words is "twenty-three billion, four hundred twelve million, nine hundred seventy-eight thousand, one hundred sixty-nine".