845522680802 has 18 divisors (see below), whose sum is σ = 1303562578563. Its totient is φ = 411311950992.

The previous prime is 845522680789. The next prime is 845522680817. The reversal of 845522680802 is 208086225548.

845522680802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 832092420481 + 13430260321 = 912191^2 + 115889^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=650201.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 48106088 + ... + 48123660.

Almost surely, 2^845522680802 is an apocalyptic number.

845522680802 is a deficient number, since it is larger than the sum of its proper divisors (458039897761).

845522680802 is an frugal number, since it uses more digits than its factorization.

845522680802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35222 (or 17612 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 50.

Multiplying 845522680802 by its sum of digits (50), we get a square (42276134040100 = 6502010²).

The spelling of 845522680802 in words is "eight hundred forty-five billion, five hundred twenty-two million, six hundred eighty thousand, eight hundred two".