673368086731 has 4 divisors (see below), whose sum is σ = 673369783632. Its totient is φ = 673366389832.

The previous prime is 673368086687. The next prime is 673368086737. The reversal of 673368086731 is 137680863376.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673368086731 - 2³³ = 664778152139 is a prime.

It is a super-2 number, since 2×673368086731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673368086737) 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, 100770 + ... + 1164856.

It is an arithmetic number, because the mean of its divisors is an integer number (168342445908).

Almost surely, 2^673368086731 is an apocalyptic number.

673368086731 is a deficient number, since it is larger than the sum of its proper divisors (1696901).

673368086731 is a wasteful number, since it uses less digits than its factorization.

673368086731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696900.

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 673368086731 in words is "six hundred seventy-three billion, three hundred sixty-eight million, eighty-six thousand, seven hundred thirty-one".