811043874 has 32 divisors (see below), whose sum is σ = 1803600000. Its totient is φ = 270155952.

The previous prime is 811043833. The next prime is 811043881. The reversal of 811043874 is 478340118.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85627 + ... + 94625.

It is an arithmetic number, because the mean of its divisors is an integer number (56362500).

Almost surely, 2^811043874 is an apocalyptic number.

811043874 is an abundant number, since it is smaller than the sum of its proper divisors (992556126).

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

811043874 is a wasteful number, since it uses less digits than its factorization.

811043874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10679 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 811043874 is about 28478.8320336351. The cubic root of 811043874 is about 932.5700192998.

It can be divided in two parts, 8110 and 43874, that added together give a square (51984 = 228²).

The spelling of 811043874 in words is "eight hundred eleven million, forty-three thousand, eight hundred seventy-four".