649736417696 has 48 divisors (see below), whose sum is σ = 1288813680000. Its totient is φ = 322424229888.

The previous prime is 649736417689. The next prime is 649736417717. The reversal of 649736417696 is 696714637946.

It is a happy number.

649736417696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3663680 + ... + 3836928.

It is an arithmetic number, because the mean of its divisors is an integer number (26850285000).

Almost surely, 2^649736417696 is an apocalyptic number.

It is an amenable number.

649736417696 is a deficient number, since it is larger than the sum of its proper divisors (639077262304).

649736417696 is a wasteful number, since it uses less digits than its factorization.

649736417696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174141 (or 174133 counting only the distinct ones).

The product of its digits is 246903552, while the sum is 68.

The spelling of 649736417696 in words is "six hundred forty-nine billion, seven hundred thirty-six million, four hundred seventeen thousand, six hundred ninety-six".