811954944 has 54 divisors (see below), whose sum is σ = 2341072916. Its totient is φ = 270650880.

The previous prime is 811954909. The next prime is 811954951. The reversal of 811954944 is 449459118.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 811954944.

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 5 ways as a sum of consecutive naturals, for example, 173902 + ... + 178509.

Almost surely, 2^811954944 is an apocalyptic number.

It is an amenable number.

811954944 is an abundant number, since it is smaller than the sum of its proper divisors (1529117972).

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

811954944 is a wasteful number, since it uses less digits than its factorization.

811954944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352433 (or 352416 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 811954944 is about 28494.8231087684. The cubic root of 811954944 is about 932.9190832869.

The spelling of 811954944 in words is "eight hundred eleven million, nine hundred fifty-four thousand, nine hundred forty-four".