11630643534 has 48 divisors (see below), whose sum is σ = 26690921712. Its totient is φ = 3647618304.

The previous prime is 11630643511. The next prime is 11630643539. The reversal of 11630643534 is 43534603611.

11630643534 is a `hidden beast` number, since 1 + 1 + 6 + 3 + 0 + 643 + 5 + 3 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11630643539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1517917 + ... + 1525559.

It is an arithmetic number, because the mean of its divisors is an integer number (556060869).

Almost surely, 2^11630643534 is an apocalyptic number.

11630643534 is an abundant number, since it is smaller than the sum of its proper divisors (15060278178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11630643534 is a wasteful number, since it uses less digits than its factorization.

11630643534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12641 (or 12638 counting only the distinct ones).

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

The spelling of 11630643534 in words is "eleven billion, six hundred thirty million, six hundred forty-three thousand, five hundred thirty-four".