173221468756 has 12 divisors (see below), whose sum is σ = 346442937568. Its totient is φ = 74237772312.

The previous prime is 173221468727. The next prime is 173221468759. The reversal of 173221468756 is 657864122371.

173221468756 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173221468759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3093240486 + ... + 3093240541.

Almost surely, 2^173221468756 is an apocalyptic number.

It is an amenable number.

173221468756 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

173221468756 is a wasteful number, since it uses less digits than its factorization.

173221468756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186481038 (or 6186481036 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The spelling of 173221468756 in words is "one hundred seventy-three billion, two hundred twenty-one million, four hundred sixty-eight thousand, seven hundred fifty-six".