811424672 has 24 divisors (see below), whose sum is σ = 1621339776. Its totient is φ = 399655872.

The previous prime is 811424641. The next prime is 811424681. The reversal of 811424672 is 276424118.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187088 + ... + 191375.

It is an arithmetic number, because the mean of its divisors is an integer number (67555824).

Almost surely, 2^811424672 is an apocalyptic number.

It is an amenable number.

811424672 is a deficient number, since it is larger than the sum of its proper divisors (809915104).

811424672 is a wasteful number, since it uses less digits than its factorization.

811424672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378540 (or 378532 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 811424672 is about 28485.5168813908. The cubic root of 811424672 is about 932.7159486163.

The spelling of 811424672 in words is "eight hundred eleven million, four hundred twenty-four thousand, six hundred seventy-two".