79650646128 has 30 divisors (see below), whose sum is σ = 222911183664. Its totient is φ = 26550215328.

The previous prime is 79650646123. The next prime is 79650646139. The reversal of 79650646128 is 82164605697.

79650646128 is a `hidden beast` number, since 7 + 9 + 6 + 506 + 4 + 6 + 128 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79650646123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 276564600 + ... + 276564887.

Almost surely, 2^79650646128 is an apocalyptic number.

It is an amenable number.

79650646128 is an abundant number, since it is smaller than the sum of its proper divisors (143260537536).

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

79650646128 is a wasteful number, since it uses less digits than its factorization.

79650646128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553129501 (or 553129492 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 79650646128 in words is "seventy-nine billion, six hundred fifty million, six hundred forty-six thousand, one hundred twenty-eight".