673500896687 has 4 divisors (see below), whose sum is σ = 695226732096. Its totient is φ = 651775061280.

The previous prime is 673500896657. The next prime is 673500896741. The reversal of 673500896687 is 786698005376.

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 673500896687 - 2⁶ = 673500896623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673500896657) 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, 10862917658 + ... + 10862917719.

It is an arithmetic number, because the mean of its divisors is an integer number (173806683024).

Almost surely, 2^673500896687 is an apocalyptic number.

673500896687 is a deficient number, since it is larger than the sum of its proper divisors (21725835409).

673500896687 is a wasteful number, since it uses less digits than its factorization.

673500896687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21725835408.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 673500896687 in words is "six hundred seventy-three billion, five hundred million, eight hundred ninety-six thousand, six hundred eighty-seven".