23145326740455 has 32 divisors (see below), whose sum is σ = 37375186296000. Its totient is φ = 12230403674112.

The previous prime is 23145326740451. The next prime is 23145326740469. The reversal of 23145326740455 is 55404762354132.

It is not a de Polignac number, because 23145326740455 - 2² = 23145326740451 is a prime.

It is a super-2 number, since 2×23145326740455² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23145326740398 and 23145326740407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145326740451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13258570 + ... + 14902359.

It is an arithmetic number, because the mean of its divisors is an integer number (1167974571750).

Almost surely, 2^{23145326740455} is an apocalyptic number.

23145326740455 is a deficient number, since it is larger than the sum of its proper divisors (14229859555545).

23145326740455 is a wasteful number, since it uses less digits than its factorization.

23145326740455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28161443.

The product of its (nonzero) digits is 12096000, while the sum is 51.

The spelling of 23145326740455 in words is "twenty-three trillion, one hundred forty-five billion, three hundred twenty-six million, seven hundred forty thousand, four hundred fifty-five".