810968972 has 24 divisors (see below), whose sum is σ = 1569428112. Its totient is φ = 363571200.

The previous prime is 810968947. The next prime is 810968989. The reversal of 810968972 is 279869018.

It is a self number, because there is not a number n which added to its sum of digits gives 810968972.

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, 123029 + ... + 129452.

It is an arithmetic number, because the mean of its divisors is an integer number (65392838).

Almost surely, 2^810968972 is an apocalyptic number.

It is an amenable number.

810968972 is a deficient number, since it is larger than the sum of its proper divisors (758459140).

810968972 is a wasteful number, since it uses less digits than its factorization.

810968972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252569 (or 252567 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 810968972 is about 28477.5169563640. The cubic root of 810968972 is about 932.5413099980.

The spelling of 810968972 in words is "eight hundred ten million, nine hundred sixty-eight thousand, nine hundred seventy-two".