650377961838 has 72 divisors (see below), whose sum is σ = 1586681224128. Its totient is φ = 192277272000.

The previous prime is 650377961819. The next prime is 650377961869. The reversal of 650377961838 is 838169773056.

650377961838 is a `hidden beast` number, since 6 + 5 + 0 + 3 + 7 + 7 + 9 + 618 + 3 + 8 = 666.

650377961838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3552318 + ... + 3730913.

It is an arithmetic number, because the mean of its divisors is an integer number (22037239224).

Almost surely, 2^650377961838 is an apocalyptic number.

650377961838 is an abundant number, since it is smaller than the sum of its proper divisors (936303262290).

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

650377961838 is a wasteful number, since it uses less digits than its factorization.

650377961838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7283302 (or 7283288 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 650377961838 in words is "six hundred fifty billion, three hundred seventy-seven million, nine hundred sixty-one thousand, eight hundred thirty-eight".