23401437453 has 6 divisors (see below), whose sum is σ = 33802076334. Its totient is φ = 15600958296.

The previous prime is 23401437383. The next prime is 23401437467. The reversal of 23401437453 is 35473410432.

23401437453 is a `hidden beast` number, since 23 + 40 + 143 + 7 + 453 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23007732489 + 393704964 = 151683^2 + 19842^2 .

It is not a de Polignac number, because 23401437453 - 2³³ = 14811502861 is a prime.

It is a super-2 number, since 2×23401437453² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401437053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1300079850 + ... + 1300079867.

It is an arithmetic number, because the mean of its divisors is an integer number (5633679389).

Almost surely, 2^23401437453 is an apocalyptic number.

It is an amenable number.

23401437453 is a deficient number, since it is larger than the sum of its proper divisors (10400638881).

23401437453 is a wasteful number, since it uses less digits than its factorization.

23401437453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600159723 (or 2600159720 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

Adding to 23401437453 its reverse (35473410432), we get a palindrome (58874847885).

The spelling of 23401437453 in words is "twenty-three billion, four hundred one million, four hundred thirty-seven thousand, four hundred fifty-three".