800928400920 has 64 divisors (see below), whose sum is σ = 2403173927520. Its totient is φ = 213546353664.

The previous prime is 800928400891. The next prime is 800928400939. The reversal of 800928400920 is 29004829008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209254 + ... + 1282826.

Almost surely, 2^800928400920 is an apocalyptic number.

It is an amenable number.

800928400920 is an abundant number, since it is smaller than the sum of its proper divisors (1602245526600).

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

800928400920 is a wasteful number, since it uses less digits than its factorization.

800928400920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079804 (or 1079800 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 800928400920 in words is "eight hundred billion, nine hundred twenty-eight million, four hundred thousand, nine hundred twenty".