7971796550 has 24 divisors (see below), whose sum is σ = 15472219536. Its totient is φ = 3050078240.

The previous prime is 7971796507. The next prime is 7971796561. The reversal of 7971796550 is 556971797.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3464849 + ... + 3467148.

It is an arithmetic number, because the mean of its divisors is an integer number (644675814).

Almost surely, 2^7971796550 is an apocalyptic number.

7971796550 is a deficient number, since it is larger than the sum of its proper divisors (7500422986).

7971796550 is a wasteful number, since it uses less digits than its factorization.

7971796550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932032 (or 6932027 counting only the distinct ones).

The product of its (nonzero) digits is 4167450, while the sum is 56.

The square root of 7971796550 is about 89284.9178193047. The cubic root of 7971796550 is about 1997.6469451522.

The spelling of 7971796550 in words is "seven billion, nine hundred seventy-one million, seven hundred ninety-six thousand, five hundred fifty".