649636888112 has 20 divisors (see below), whose sum is σ = 1262718655536. Its totient is φ = 323774009280.

The previous prime is 649636888091. The next prime is 649636888123. The reversal of 649636888112 is 211888636946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65272043 + ... + 65281994.

Almost surely, 2^649636888112 is an apocalyptic number.

It is an amenable number.

649636888112 is a deficient number, since it is larger than the sum of its proper divisors (613081767424).

649636888112 is a wasteful number, since it uses less digits than its factorization.

649636888112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130554356 (or 130554350 counting only the distinct ones).

The product of its digits is 23887872, while the sum is 62.

The spelling of 649636888112 in words is "six hundred forty-nine billion, six hundred thirty-six million, eight hundred eighty-eight thousand, one hundred twelve".