7922257994 has 64 divisors (see below), whose sum is σ = 14132025600. Its totient is φ = 3260694528.

The previous prime is 7922257991. The next prime is 7922257999. The reversal of 7922257994 is 4997522297.

It is not an unprimeable number, because it can be changed into a prime (7922257991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10301642 + ... + 10302410.

It is an arithmetic number, because the mean of its divisors is an integer number (220812900).

Almost surely, 2^7922257994 is an apocalyptic number.

7922257994 is a deficient number, since it is larger than the sum of its proper divisors (6209767606).

7922257994 is a wasteful number, since it uses less digits than its factorization.

7922257994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087.

The product of its digits is 5715360, while the sum is 56.

The square root of 7922257994 is about 89007.0671014386. The cubic root of 7922257994 is about 1993.5003999810.

The spelling of 7922257994 in words is "seven billion, nine hundred twenty-two million, two hundred fifty-seven thousand, nine hundred ninety-four".