674282656861 has 6 divisors (see below), whose sum is σ = 741153664286. Its totient is φ = 612984233400.

The previous prime is 674282656841. The next prime is 674282656961. The reversal of 674282656861 is 168656282476.

It can be written as a sum of positive squares in only one way, i.e., 404885325636 + 269397331225 = 636306^2 + 519035^2 .

It is not a de Polignac number, because 674282656861 - 2²³ = 674274268253 is a prime.

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 674282656861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674282656841) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2786291850 + ... + 2786292091.

Almost surely, 2^674282656861 is an apocalyptic number.

It is an amenable number.

674282656861 is a deficient number, since it is larger than the sum of its proper divisors (66871007425).

674282656861 is a wasteful number, since it uses less digits than its factorization.

674282656861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572583963 (or 5572583952 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 61.

The spelling of 674282656861 in words is "six hundred seventy-four billion, two hundred eighty-two million, six hundred fifty-six thousand, eight hundred sixty-one".