805673497956 has 48 divisors (see below), whose sum is σ = 1940717388288. Its totient is φ = 259871846400.

The previous prime is 805673497949. The next prime is 805673497991. The reversal of 805673497956 is 659794376508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4434846 + ... + 4612938.

It is an arithmetic number, because the mean of its divisors is an integer number (40431612256).

Almost surely, 2^805673497956 is an apocalyptic number.

It is an amenable number.

805673497956 is an abundant number, since it is smaller than the sum of its proper divisors (1135043890332).

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

805673497956 is a wasteful number, since it uses less digits than its factorization.

805673497956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190292 (or 190290 counting only the distinct ones).

The product of its (nonzero) digits is 342921600, while the sum is 69.

The spelling of 805673497956 in words is "eight hundred five billion, six hundred seventy-three million, four hundred ninety-seven thousand, nine hundred fifty-six".