7999619970 has 32 divisors (see below), whose sum is σ = 20209567680. Its totient is φ = 2020956480.

The previous prime is 7999619959. The next prime is 7999619983. The reversal of 7999619970 is 799169997.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7016641 + ... + 7017780.

It is an arithmetic number, because the mean of its divisors is an integer number (631548990).

Almost surely, 2^7999619970 is an apocalyptic number.

7999619970 is an abundant number, since it is smaller than the sum of its proper divisors (12209947710).

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

7999619970 is a wasteful number, since it uses less digits than its factorization.

7999619970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034450.

The product of its (nonzero) digits is 17360406, while the sum is 66.

The square root of 7999619970 is about 89440.5946424776. The cubic root of 7999619970 is about 1999.9683303319.

The spelling of 7999619970 in words is "seven billion, nine hundred ninety-nine million, six hundred nineteen thousand, nine hundred seventy".