7989407514916 has 27 divisors (see below), whose sum is σ = 14756257829691. Its totient is φ = 3784405313304.

The previous prime is 7989407514877. The next prime is 7989407514937. The reversal of 7989407514916 is 6194157049897.

The square root of 7989407514916 is 2826554.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 107371861 + ... + 107446243.

Almost surely, 2^{7989407514916} is an apocalyptic number.

7989407514916 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

7989407514916 is the 2826554-th square number.

It is an amenable number.

7989407514916 is a deficient number, since it is larger than the sum of its proper divisors (6766850314775).

7989407514916 is an frugal number, since it uses more digits than its factorization.

7989407514916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148808 (or 74404 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 7989407514916 in words is "seven trillion, nine hundred eighty-nine billion, four hundred seven million, five hundred fourteen thousand, nine hundred sixteen".