672440172700 has 72 divisors (see below), whose sum is σ = 1461900182400. Its totient is φ = 268477978560.

The previous prime is 672440172689. The next prime is 672440172707. The reversal of 672440172700 is 7271044276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672440172707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177939411 + ... + 177943189.

It is an arithmetic number, because the mean of its divisors is an integer number (20304169200).

Almost surely, 2^672440172700 is an apocalyptic number.

It is an amenable number.

672440172700 is an abundant number, since it is smaller than the sum of its proper divisors (789460009700).

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

672440172700 is a wasteful number, since it uses less digits than its factorization.

672440172700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619 (or 6612 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The spelling of 672440172700 in words is "six hundred seventy-two billion, four hundred forty million, one hundred seventy-two thousand, seven hundred".