649177912 has 32 divisors (see below), whose sum is σ = 1316243520. Its totient is φ = 298992640.

The previous prime is 649177909. The next prime is 649177927. The reversal of 649177912 is 219771946.

649177912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×649177912² = 842863922857359488, which contains 22 as substring.

It is a congruent number.

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, 44389 + ... + 57172.

It is an arithmetic number, because the mean of its divisors is an integer number (41132610).

Almost surely, 2^649177912 is an apocalyptic number.

It is an amenable number.

649177912 is an abundant number, since it is smaller than the sum of its proper divisors (667065608).

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

649177912 is a wasteful number, since it uses less digits than its factorization.

649177912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101631 (or 101627 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The square root of 649177912 is about 25478.9699948801. The cubic root of 649177912 is about 865.8737590820.

The spelling of 649177912 in words is "six hundred forty-nine million, one hundred seventy-seven thousand, nine hundred twelve".