673894500679 has 4 divisors (see below), whose sum is σ = 680566723560. Its totient is φ = 667222277800.

The previous prime is 673894500661. The next prime is 673894500689. The reversal of 673894500679 is 976005498376.

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 673894500679 - 2¹¹ = 673894498631 is a prime.

It is a super-2 number, since 2×673894500679² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673894500679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673894500689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336111289 + ... + 3336111490.

It is an arithmetic number, because the mean of its divisors is an integer number (170141680890).

Almost surely, 2^673894500679 is an apocalyptic number.

673894500679 is a deficient number, since it is larger than the sum of its proper divisors (6672222881).

673894500679 is a wasteful number, since it uses less digits than its factorization.

673894500679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672222880.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 673894500679 in words is "six hundred seventy-three billion, eight hundred ninety-four million, five hundred thousand, six hundred seventy-nine".