11637449946 has 48 divisors (see below), whose sum is σ = 25772947200. Its totient is φ = 3793372704.

The previous prime is 11637449927. The next prime is 11637449983. The reversal of 11637449946 is 64994473611.

11637449946 is a `hidden beast` number, since 116 + 37 + 4 + 499 + 4 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11637449892 and 11637449901.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1110660 + ... + 1121088.

It is an arithmetic number, because the mean of its divisors is an integer number (536936400).

Almost surely, 2^11637449946 is an apocalyptic number.

11637449946 is an abundant number, since it is smaller than the sum of its proper divisors (14135497254).

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

11637449946 is a wasteful number, since it uses less digits than its factorization.

11637449946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11803 (or 11800 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 11637449946 in words is "eleven billion, six hundred thirty-seven million, four hundred forty-nine thousand, nine hundred forty-six".