672777126 has 48 divisors (see below), whose sum is σ = 1668086784. Its totient is φ = 191972592.

The previous prime is 672777101. The next prime is 672777139. The reversal of 672777126 is 621777276.

It is a super-2 number, since 2×672777126² = 905258122537639752, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 108235 + ... + 114281.

It is an arithmetic number, because the mean of its divisors is an integer number (34751808).

Almost surely, 2^672777126 is an apocalyptic number.

672777126 is an abundant number, since it is smaller than the sum of its proper divisors (995309658).

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

672777126 is a wasteful number, since it uses less digits than its factorization.

672777126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945 (or 6942 counting only the distinct ones).

The product of its digits is 345744, while the sum is 45.

The square root of 672777126 is about 25937.9476057764. The cubic root of 672777126 is about 876.2413405846.

The spelling of 672777126 in words is "six hundred seventy-two million, seven hundred seventy-seven thousand, one hundred twenty-six".