7864922494 has 32 divisors (see below), whose sum is σ = 13910039136. Its totient is φ = 3288021120.

The previous prime is 7864922479. The next prime is 7864922531. The reversal of 7864922494 is 4942294687.

It is a happy number.

It is a congruent number.

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, 29584 + ... + 128860.

It is an arithmetic number, because the mean of its divisors is an integer number (434688723).

Almost surely, 2^7864922494 is an apocalyptic number.

7864922494 is a deficient number, since it is larger than the sum of its proper divisors (6045116642).

7864922494 is a wasteful number, since it uses less digits than its factorization.

7864922494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99580.

The product of its digits is 6967296, while the sum is 55.

The square root of 7864922494 is about 88684.3982558375. The cubic root of 7864922494 is about 1988.6795861764.

The spelling of 7864922494 in words is "seven billion, eight hundred sixty-four million, nine hundred twenty-two thousand, four hundred ninety-four".