872225203423664 has 20 divisors (see below), whose sum is σ = 1689960081908280. Its totient is φ = 436106472608640.

The previous prime is 872225203423661. The next prime is 872225203423681. The reversal of 872225203423664 is 466324302522278.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (872225203423661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 381894794 + ... + 384171945.

It is an arithmetic number, because the mean of its divisors is an integer number (84498004095414).

Almost surely, 2^{872225203423664} is an apocalyptic number.

It is an amenable number.

872225203423664 is a deficient number, since it is larger than the sum of its proper divisors (817734878484616).

872225203423664 is a wasteful number, since it uses less digits than its factorization.

872225203423664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766137908 (or 766137902 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 56.

The spelling of 872225203423664 in words is "eight hundred seventy-two trillion, two hundred twenty-five billion, two hundred three million, four hundred twenty-three thousand, six hundred sixty-four".