672804401612 has 24 divisors (see below), whose sum is σ = 1345646615040. Its totient is φ = 288336641040.

The previous prime is 672804401611. The next prime is 672804401657. The reversal of 672804401612 is 216104408276.

It is a self number, because there is not a number n which added to its sum of digits gives 672804401612.

It is not an unprimeable number, because it can be changed into a prime (672804401611) 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, 736589 + ... + 1374107.

It is an arithmetic number, because the mean of its divisors is an integer number (56068608960).

Almost surely, 2^672804401612 is an apocalyptic number.

It is an amenable number.

672804401612 is an abundant number, since it is smaller than the sum of its proper divisors (672842213428).

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

672804401612 is a wasteful number, since it uses less digits than its factorization.

672804401612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675221 (or 675219 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

Adding to 672804401612 its reverse (216104408276), we get a palindrome (888908809888).

The spelling of 672804401612 in words is "six hundred seventy-two billion, eight hundred four million, four hundred one thousand, six hundred twelve".