7994052617820 has 72 divisors (see below), whose sum is σ = 22607160591792. Its totient is φ = 2110640793600.

The previous prime is 7994052617819. The next prime is 7994052617839. The reversal of 7994052617820 is 287162504997.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5918389 + ... + 7142508.

Almost surely, 2^{7994052617820} is an apocalyptic number.

It is an amenable number.

7994052617820 is an abundant number, since it is smaller than the sum of its proper divisors (14613107973972).

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

7994052617820 is a wasteful number, since it uses less digits than its factorization.

7994052617820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13061111 (or 13061008 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 7994052617820 in words is "seven trillion, nine hundred ninety-four billion, fifty-two million, six hundred seventeen thousand, eight hundred twenty".