650638875132 has 96 divisors (see below), whose sum is σ = 1691434967040. Its totient is φ = 216289612800.

The previous prime is 650638875083. The next prime is 650638875143. The reversal of 650638875132 is 231578836056.

650638875132 is a `hidden beast` number, since 6 + 506 + 3 + 8 + 87 + 51 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135519132 + ... + 135523932.

It is an arithmetic number, because the mean of its divisors is an integer number (17619114240).

Almost surely, 2^650638875132 is an apocalyptic number.

It is an amenable number.

650638875132 is an abundant number, since it is smaller than the sum of its proper divisors (1040796091908).

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

650638875132 is a wasteful number, since it uses less digits than its factorization.

650638875132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7968 (or 7960 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 650638875132 in words is "six hundred fifty billion, six hundred thirty-eight million, eight hundred seventy-five thousand, one hundred thirty-two".