649804011136 has 32 divisors (see below), whose sum is σ = 1479464491680. Its totient is φ = 278487432960.

The previous prime is 649804011049. The next prime is 649804011149. The reversal of 649804011136 is 631110408946.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 649804011092 and 649804011101.

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, 362612950 + ... + 362614741.

It is an arithmetic number, because the mean of its divisors is an integer number (46233265365).

Almost surely, 2^649804011136 is an apocalyptic number.

It is an amenable number.

649804011136 is an abundant number, since it is smaller than the sum of its proper divisors (829660480544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649804011136 is an equidigital number, since it uses as much as digits as its factorization.

649804011136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725227712 (or 725227700 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 649804011136 in words is "six hundred forty-nine billion, eight hundred four million, eleven thousand, one hundred thirty-six".