7447972922 has 16 divisors (see below), whose sum is σ = 12155379432. Its totient is φ = 3402086400.

The previous prime is 7447972919. The next prime is 7447972933. The reversal of 7447972922 is 2292797447.

It can be written as a sum of positive squares in 4 ways, for example, as 4604843881 + 2843129041 = 67859^2 + 53321^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474079 + ... + 1479122.

Almost surely, 2^7447972922 is an apocalyptic number.

7447972922 is a deficient number, since it is larger than the sum of its proper divisors (4707406510).

7447972922 is a wasteful number, since it uses less digits than its factorization.

7447972922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953313.

The product of its digits is 3556224, while the sum is 53.

The square root of 7447972922 is about 86301.6391617216. The cubic root of 7447972922 is about 1952.8971112995.

The spelling of 7447972922 in words is "seven billion, four hundred forty-seven million, nine hundred seventy-two thousand, nine hundred twenty-two".