672277786838 has 16 divisors (see below), whose sum is σ = 1152653095584. Its totient is φ = 288074829120.

The previous prime is 672277786787. The next prime is 672277786841. The reversal of 672277786838 is 838687772276.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3590645 + ... + 3773232.

It is an arithmetic number, because the mean of its divisors is an integer number (72040818474).

Almost surely, 2^672277786838 is an apocalyptic number.

672277786838 is a deficient number, since it is larger than the sum of its proper divisors (480375308746).

672277786838 is a wasteful number, since it uses less digits than its factorization.

672277786838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370407.

The product of its digits is 531062784, while the sum is 71.

The spelling of 672277786838 in words is "six hundred seventy-two billion, two hundred seventy-seven million, seven hundred eighty-six thousand, eight hundred thirty-eight".