7994427998016 has 56 divisors (see below), whose sum is σ = 21723597721120. Its totient is φ = 2592787456512.

The previous prime is 7994427998009. The next prime is 7994427998017. The reversal of 7994427998016 is 6108997244997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7994427998017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562663786 + ... + 562677993.

Almost surely, 2^{7994427998016} is an apocalyptic number.

It is an amenable number.

7994427998016 is an abundant number, since it is smaller than the sum of its proper divisors (13729169723104).

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

7994427998016 is a wasteful number, since it uses less digits than its factorization.

7994427998016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125341831 (or 1125341821 counting only the distinct ones).

The product of its (nonzero) digits is 493807104, while the sum is 75.

The spelling of 7994427998016 in words is "seven trillion, nine hundred ninety-four billion, four hundred twenty-seven million, nine hundred ninety-eight thousand, sixteen".