673686866874 has 32 divisors (see below), whose sum is σ = 1542620301696. Its totient is φ = 192136386240.

The previous prime is 673686866771. The next prime is 673686866917. The reversal of 673686866874 is 478668686376.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 673686866796 and 673686866805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14375317 + ... + 14422104.

It is an arithmetic number, because the mean of its divisors is an integer number (48206884428).

Almost surely, 2^673686866874 is an apocalyptic number.

673686866874 is an abundant number, since it is smaller than the sum of its proper divisors (868933434822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673686866874 is a wasteful number, since it uses less digits than its factorization.

673686866874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28797990.

The product of its digits is 2341011456, while the sum is 75.

The spelling of 673686866874 in words is "six hundred seventy-three billion, six hundred eighty-six million, eight hundred sixty-six thousand, eight hundred seventy-four".