7858644316 has 12 divisors (see below), whose sum is σ = 13753305720. Its totient is φ = 3929128400.

The previous prime is 7858644307. The next prime is 7858644317. The reversal of 7858644316 is 6134468587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7858644317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81615 + ... + 149593.

It is an arithmetic number, because the mean of its divisors is an integer number (1146108810).

Almost surely, 2^7858644316 is an apocalyptic number.

It is an amenable number.

7858644316 is a deficient number, since it is larger than the sum of its proper divisors (5894661404).

7858644316 is a wasteful number, since it uses less digits than its factorization.

7858644316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96884 (or 96882 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 52.

The square root of 7858644316 is about 88648.9950084038. The cubic root of 7858644316 is about 1988.1502905163.

The spelling of 7858644316 in words is "seven billion, eight hundred fifty-eight million, six hundred forty-four thousand, three hundred sixteen".