672809986342 has 16 divisors (see below), whose sum is σ = 1088750334672. Its totient is φ = 309983847840.

The previous prime is 672809986337. The next prime is 672809986349. The reversal of 672809986342 is 243689908276.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672809986349) by changing a digit.

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, 22644793 + ... + 22674484.

It is an arithmetic number, because the mean of its divisors is an integer number (68046895917).

Almost surely, 2^672809986342 is an apocalyptic number.

672809986342 is a deficient number, since it is larger than the sum of its proper divisors (415940348330).

672809986342 is a wasteful number, since it uses less digits than its factorization.

672809986342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45319863.

The product of its (nonzero) digits is 62705664, while the sum is 64.

The spelling of 672809986342 in words is "six hundred seventy-two billion, eight hundred nine million, nine hundred eighty-six thousand, three hundred forty-two".