649072883522 has 54 divisors (see below), whose sum is σ = 1145727843417. Its totient is φ = 274978182528.

The previous prime is 649072883489. The next prime is 649072883531. The reversal of 649072883522 is 225388270946.

It is a happy number.

649072883522 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 647382769201 + 1690114321 = 804601^2 + 41111^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=569681.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 773626379 + ... + 773627217.

Almost surely, 2^649072883522 is an apocalyptic number.

649072883522 is a deficient number, since it is larger than the sum of its proper divisors (496654959895).

649072883522 is an frugal number, since it uses more digits than its factorization.

649072883522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 649072883522 in words is "six hundred forty-nine billion, seventy-two million, eight hundred eighty-three thousand, five hundred twenty-two".