23641564356469 has 2 divisors, whose sum is σ = 23641564356470. Its totient is φ = 23641564356468.

The previous prime is 23641564356457. The next prime is 23641564356541. The reversal of 23641564356469 is 96465346514632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23457428964369 + 184135392100 = 4843287^2 + 429110^2 .

It is a cyclic number.

It is not a de Polignac number, because 23641564356469 - 2²⁷ = 23641430138741 is a prime.

It is a super-2 number, since 2×23641564356469² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23641564356469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23641564356409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11820782178234 + 11820782178235.

It is an arithmetic number, because the mean of its divisors is an integer number (11820782178235).

Almost surely, 2^{23641564356469} is an apocalyptic number.

It is an amenable number.

23641564356469 is a deficient number, since it is larger than the sum of its proper divisors (1).

23641564356469 is an equidigital number, since it uses as much as digits as its factorization.

23641564356469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 335923200, while the sum is 64.

The spelling of 23641564356469 in words is "twenty-three trillion, six hundred forty-one billion, five hundred sixty-four million, three hundred fifty-six thousand, four hundred sixty-nine".