11630643453 has 72 divisors (see below), whose sum is σ = 20170646496. Its totient is φ = 6366657600.

The previous prime is 11630643421. The next prime is 11630643461. The reversal of 11630643453 is 35434603611.

11630643453 is a `hidden beast` number, since 1 + 1 + 6 + 3 + 0 + 643 + 4 + 5 + 3 = 666.

It is not a de Polignac number, because 11630643453 - 2⁵ = 11630643421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11630643253) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2840938 + ... + 2845028.

It is an arithmetic number, because the mean of its divisors is an integer number (280147868).

Almost surely, 2^11630643453 is an apocalyptic number.

11630643453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11630643453 is a deficient number, since it is larger than the sum of its proper divisors (8540003043).

11630643453 is a wasteful number, since it uses less digits than its factorization.

11630643453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 4165 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 11630643453 in words is "eleven billion, six hundred thirty million, six hundred forty-three thousand, four hundred fifty-three".