7965997974 has 120 divisors (see below), whose sum is σ = 20474158320. Its totient is φ = 2308854240.

The previous prime is 7965997933. The next prime is 7965998017. The reversal of 7965997974 is 4797995697.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 442012 + ... + 459680.

It is an arithmetic number, because the mean of its divisors is an integer number (170617986).

Almost surely, 2^7965997974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7965997974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10237079160).

7965997974 is an abundant number, since it is smaller than the sum of its proper divisors (12508160346).

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

7965997974 is a wasteful number, since it uses less digits than its factorization.

7965997974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17728 (or 17708 counting only the distinct ones).

The product of its digits is 270050760, while the sum is 72.

The square root of 7965997974 is about 89252.4395969096. The cubic root of 7965997974 is about 1997.1624739602.

The spelling of 7965997974 in words is "seven billion, nine hundred sixty-five million, nine hundred ninety-seven thousand, nine hundred seventy-four".