810074864 has 20 divisors (see below), whose sum is σ = 1623642360. Its totient is φ = 391070400.

The previous prime is 810074833. The next prime is 810074879. The reversal of 810074864 is 468470018.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872462 + ... + 873389.

It is an arithmetic number, because the mean of its divisors is an integer number (81182118).

Almost surely, 2^810074864 is an apocalyptic number.

It is an amenable number.

810074864 is an abundant number, since it is smaller than the sum of its proper divisors (813567496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810074864 is a wasteful number, since it uses less digits than its factorization.

810074864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745888 (or 1745882 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 810074864 is about 28461.8141375423. The cubic root of 810074864 is about 932.1984694020.

The spelling of 810074864 in words is "eight hundred ten million, seventy-four thousand, eight hundred sixty-four".