672758168 has 8 divisors (see below), whose sum is σ = 1261421580. Its totient is φ = 336379080.

The previous prime is 672758167. The next prime is 672758173. The reversal of 672758168 is 861857276.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×672758168² = 905207105221432448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672758167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42047378 + ... + 42047393.

Almost surely, 2^672758168 is an apocalyptic number.

It is an amenable number.

672758168 is a deficient number, since it is larger than the sum of its proper divisors (588663412).

672758168 is a wasteful number, since it uses less digits than its factorization.

672758168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84094777 (or 84094773 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 672758168 is about 25937.5821540868. The cubic root of 672758168 is about 876.2331100534.

The spelling of 672758168 in words is "six hundred seventy-two million, seven hundred fifty-eight thousand, one hundred sixty-eight".