172684890876 has 24 divisors (see below), whose sum is σ = 403007628240. Its totient is φ = 57550742272.

The previous prime is 172684890871. The next prime is 172684890901. The reversal of 172684890876 is 678098486271.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172684890871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294791 + ... + 1421918.

It is an arithmetic number, because the mean of its divisors is an integer number (16791984510).

Almost surely, 2^172684890876 is an apocalyptic number.

It is an amenable number.

172684890876 is an abundant number, since it is smaller than the sum of its proper divisors (230322737364).

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

172684890876 is a wasteful number, since it uses less digits than its factorization.

172684890876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722013 (or 2722011 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 66.

The spelling of 172684890876 in words is "one hundred seventy-two billion, six hundred eighty-four million, eight hundred ninety thousand, eight hundred seventy-six".