649674737588 has 12 divisors (see below), whose sum is σ = 1137101727300. Its totient is φ = 324788529792.

The previous prime is 649674737563. The next prime is 649674737603. The reversal of 649674737588 is 885737476946.

649674737588 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 218212305424 + 431462432164 = 467132^2 + 656858^2 .

It is a congruent number.

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, 12179813 + ... + 12233036.

It is an arithmetic number, because the mean of its divisors is an integer number (94758477275).

Almost surely, 2^649674737588 is an apocalyptic number.

It is an amenable number.

649674737588 is a deficient number, since it is larger than the sum of its proper divisors (487426989712).

649674737588 is a wasteful number, since it uses less digits than its factorization.

649674737588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24419506 (or 24419504 counting only the distinct ones).

The product of its digits is 1706987520, while the sum is 74.

The spelling of 649674737588 in words is "six hundred forty-nine billion, six hundred seventy-four million, seven hundred thirty-seven thousand, five hundred eighty-eight".