805513388070 has 64 divisors (see below), whose sum is σ = 2031655760640. Its totient is φ = 204137635968.

The previous prime is 805513388039. The next prime is 805513388189. The reversal of 805513388070 is 70883315508.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 8390500 + ... + 8485959.

It is an arithmetic number, because the mean of its divisors is an integer number (31744621260).

Almost surely, 2^805513388070 is an apocalyptic number.

805513388070 is an abundant number, since it is smaller than the sum of its proper divisors (1226142372570).

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

805513388070 is a wasteful number, since it uses less digits than its factorization.

805513388070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16876549.

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 805513388070 in words is "eight hundred five billion, five hundred thirteen million, three hundred eighty-eight thousand, seventy".