7939919648 has 24 divisors (see below), whose sum is σ = 15829591680. Its totient is φ = 3919705920.

The previous prime is 7939919641. The next prime is 7939919693. The reversal of 7939919648 is 8469199397.

It is not an unprimeable number, because it can be changed into a prime (7939919641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567868 + ... + 1572923.

It is an arithmetic number, because the mean of its divisors is an integer number (659566320).

Almost surely, 2^7939919648 is an apocalyptic number.

It is an amenable number.

7939919648 is a deficient number, since it is larger than the sum of its proper divisors (7889672032).

7939919648 is a wasteful number, since it uses less digits than its factorization.

7939919648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140880 (or 3140872 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 65.

The square root of 7939919648 is about 89106.2267633413. The cubic root of 7939919648 is about 1994.9807179415.

The spelling of 7939919648 in words is "seven billion, nine hundred thirty-nine million, nine hundred nineteen thousand, six hundred forty-eight".