7959396720 has 80 divisors (see below), whose sum is σ = 26917241472. Its totient is φ = 1929550080.

The previous prime is 7959396691. The next prime is 7959396727. The reversal of 7959396720 is 276939597.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×7959396720² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7959396727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504822 + ... + 1510101.

Almost surely, 2^7959396720 is an apocalyptic number.

It is an amenable number.

7959396720 is an abundant number, since it is smaller than the sum of its proper divisors (18957844752).

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

7959396720 is a wasteful number, since it uses less digits than its factorization.

7959396720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014950 (or 3014944 counting only the distinct ones).

The product of its (nonzero) digits is 6429780, while the sum is 57.

The square root of 7959396720 is about 89215.4511281538. The cubic root of 7959396720 is about 1996.6106527406.

The spelling of 7959396720 in words is "seven billion, nine hundred fifty-nine million, three hundred ninety-six thousand, seven hundred twenty".