23454619065 has 128 divisors (see below), whose sum is σ = 45482803200. Its totient is φ = 11424188160.

The previous prime is 23454619061. The next prime is 23454619087. The reversal of 23454619065 is 56091645432.

23454619065 is a `hidden beast` number, since 2 + 3 + 45 + 461 + 90 + 65 = 666.

It is not a de Polignac number, because 23454619065 - 2² = 23454619061 is a prime.

It is a super-2 number, since 2×23454619065² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23454619065.

It is not an unprimeable number, because it can be changed into a prime (23454619061) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31567084 + ... + 31567826.

It is an arithmetic number, because the mean of its divisors is an integer number (355334400).

Almost surely, 2^23454619065 is an apocalyptic number.

It is an amenable number.

23454619065 is a deficient number, since it is larger than the sum of its proper divisors (22028184135).

23454619065 is a wasteful number, since it uses less digits than its factorization.

23454619065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 23454619065 in words is "twenty-three billion, four hundred fifty-four million, six hundred nineteen thousand, sixty-five".