23400621063 has 8 divisors (see below), whose sum is σ = 34667586800. Its totient is φ = 15600414024.

The previous prime is 23400621037. The next prime is 23400621077. The reversal of 23400621063 is 36012600432.

23400621063 is a `hidden beast` number, since 2 + 34 + 0 + 0 + 621 + 0 + 6 + 3 = 666.

It is not a de Polignac number, because 23400621063 - 2¹⁶ = 23400555527 is a prime.

It is a super-2 number, since 2×23400621063² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 866689669 = 23400621063 / (2 + 3 + 4 + 0 + 0 + 6 + 2 + 1 + 0 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400621263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433344808 + ... + 433344861.

It is an arithmetic number, because the mean of its divisors is an integer number (4333448350).

Almost surely, 2^23400621063 is an apocalyptic number.

23400621063 is a deficient number, since it is larger than the sum of its proper divisors (11266965737).

23400621063 is an equidigital number, since it uses as much as digits as its factorization.

23400621063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866689678 (or 866689672 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The spelling of 23400621063 in words is "twenty-three billion, four hundred million, six hundred twenty-one thousand, sixty-three".