811702464 has 56 divisors (see below), whose sum is σ = 2159587248. Its totient is φ = 269061120.

The previous prime is 811702457. The next prime is 811702511. The reversal of 811702464 is 464207118.

It is a zygodrome in base 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, 23074 + ... + 46430.

It is an arithmetic number, because the mean of its divisors is an integer number (38564058).

Almost surely, 2^811702464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 811702464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079793624).

811702464 is an abundant number, since it is smaller than the sum of its proper divisors (1347884784).

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

811702464 is a wasteful number, since it uses less digits than its factorization.

811702464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23553 (or 23543 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 811702464 is about 28490.3924858890. The cubic root of 811702464 is about 932.8223751997.

The spelling of 811702464 in words is "eight hundred eleven million, seven hundred two thousand, four hundred sixty-four".