649362036872 has 16 divisors (see below), whose sum is σ = 1217563468800. Its totient is φ = 324678445200.

The previous prime is 649362036857. The next prime is 649362036899. The reversal of 649362036872 is 278630263946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143329 + ... + 1614287.

It is an arithmetic number, because the mean of its divisors is an integer number (76097716800).

Almost surely, 2^649362036872 is an apocalyptic number.

It is an amenable number.

649362036872 is a deficient number, since it is larger than the sum of its proper divisors (568201431928).

649362036872 is a wasteful number, since it uses less digits than its factorization.

649362036872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643316 (or 643312 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 56.

The spelling of 649362036872 in words is "six hundred forty-nine billion, three hundred sixty-two million, thirty-six thousand, eight hundred seventy-two".