672289185204 has 360 divisors, whose sum is σ = 2196202968960. Its totient is φ = 175575299328.

The previous prime is 672289185193. The next prime is 672289185209. The reversal of 672289185204 is 402581982276.

672289185204 is a `hidden beast` number, since 6 + 7 + 2 + 28 + 91 + 8 + 520 + 4 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672289185209) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 39470562 + ... + 39487590.

Almost surely, 2^672289185204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672289185204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098101484480).

672289185204 is an abundant number, since it is smaller than the sum of its proper divisors (1523913783756).

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

672289185204 is a wasteful number, since it uses less digits than its factorization.

672289185204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181 (or 17157 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 672289185204 in words is "six hundred seventy-two billion, two hundred eighty-nine million, one hundred eighty-five thousand, two hundred four".