672751707178144 has 24 divisors (see below), whose sum is σ = 1444887189281088. Its totient is φ = 305796230535360.

The previous prime is 672751707178141. The next prime is 672751707178157. The reversal of 672751707178144 is 441871707157276.

It is a happy number.

It is a super-2 number, since 2×672751707178144² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 672751707178144.

It is not an unprimeable number, because it can be changed into a prime (672751707178141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955613220072 + ... + 955613220775.

It is an arithmetic number, because the mean of its divisors is an integer number (60203632886712).

Almost surely, 2^{672751707178144} is an apocalyptic number.

It is an amenable number.

672751707178144 is an abundant number, since it is smaller than the sum of its proper divisors (772135482102944).

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

672751707178144 is a wasteful number, since it uses less digits than its factorization.

672751707178144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911226440868 (or 1911226440860 counting only the distinct ones).

The product of its (nonzero) digits is 129077760, while the sum is 67.

The spelling of 672751707178144 in words is "six hundred seventy-two trillion, seven hundred fifty-one billion, seven hundred seven million, one hundred seventy-eight thousand, one hundred forty-four".