23454476569 has 2 divisors, whose sum is σ = 23454476570. Its totient is φ = 23454476568.

The previous prime is 23454476561. The next prime is 23454476579. The reversal of 23454476569 is 96567445432.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13992050944 + 9462425625 = 118288^2 + 97275^2 .

It is a cyclic number.

It is not a de Polignac number, because 23454476569 - 2³ = 23454476561 is a prime.

It is a super-2 number, since 2×23454476569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23454476561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11727238284 + 11727238285.

It is an arithmetic number, because the mean of its divisors is an integer number (11727238285).

Almost surely, 2^23454476569 is an apocalyptic number.

It is an amenable number.

23454476569 is a deficient number, since it is larger than the sum of its proper divisors (1).

23454476569 is an equidigital number, since it uses as much as digits as its factorization.

23454476569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 55.

It can be divided in two parts, 234544 and 76569, that added together give a palindrome (311113).

The spelling of 23454476569 in words is "twenty-three billion, four hundred fifty-four million, four hundred seventy-six thousand, five hundred sixty-nine".