672151218 has 64 divisors (see below), whose sum is σ = 1430956800. Its totient is φ = 210051072.

The previous prime is 672151211. The next prime is 672151231. The reversal of 672151218 is 812151276.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672151211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1994346 + ... + 1994682.

It is an arithmetic number, because the mean of its divisors is an integer number (22358700).

Almost surely, 2^672151218 is an apocalyptic number.

672151218 is an abundant number, since it is smaller than the sum of its proper divisors (758805582).

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

672151218 is a wasteful number, since it uses less digits than its factorization.

672151218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611.

The product of its digits is 6720, while the sum is 33.

The square root of 672151218 is about 25925.8793100639. The cubic root of 672151218 is about 875.9695236577.

The spelling of 672151218 in words is "six hundred seventy-two million, one hundred fifty-one thousand, two hundred eighteen".