673772875687 has 2 divisors, whose sum is σ = 673772875688. Its totient is φ = 673772875686.

The previous prime is 673772875667. The next prime is 673772875823. The reversal of 673772875687 is 786578277376.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673772875687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673772875667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336886437843 + 336886437844.

It is an arithmetic number, because the mean of its divisors is an integer number (336886437844).

Almost surely, 2^673772875687 is an apocalyptic number.

673772875687 is a deficient number, since it is larger than the sum of its proper divisors (1).

673772875687 is an equidigital number, since it uses as much as digits as its factorization.

673772875687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161699840, while the sum is 73.

The spelling of 673772875687 in words is "six hundred seventy-three billion, seven hundred seventy-two million, eight hundred seventy-five thousand, six hundred eighty-seven".