811963464 has 32 divisors (see below), whose sum is σ = 2186056320. Its totient is φ = 249834816.

The previous prime is 811963381. The next prime is 811963531. The reversal of 811963464 is 464369118.

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 7 ways as a sum of consecutive naturals, for example, 1300912 + ... + 1301535.

It is an arithmetic number, because the mean of its divisors is an integer number (68314260).

Almost surely, 2^811963464 is an apocalyptic number.

It is an amenable number.

811963464 is an abundant number, since it is smaller than the sum of its proper divisors (1374092856).

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

811963464 is a wasteful number, since it uses less digits than its factorization.

811963464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602469 (or 2602465 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 811963464 is about 28494.9726092165. The cubic root of 811963464 is about 932.9223463755.

The spelling of 811963464 in words is "eight hundred eleven million, nine hundred sixty-three thousand, four hundred sixty-four".