674720287709 has 16 divisors (see below), whose sum is σ = 758275862400. Its totient is φ = 595691126976.

The previous prime is 674720287651. The next prime is 674720287711. The reversal of 674720287709 is 907782027476.

It is a cyclic number.

It is not a de Polignac number, because 674720287709 - 2¹² = 674720283613 is a prime.

It is a super-2 number, since 2×674720287709² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674720287609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3870182 + ... + 4040760.

It is an arithmetic number, because the mean of its divisors is an integer number (47392241400).

Almost surely, 2^674720287709 is an apocalyptic number.

It is an amenable number.

674720287709 is a deficient number, since it is larger than the sum of its proper divisors (83555574691).

674720287709 is a wasteful number, since it uses less digits than its factorization.

674720287709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183844.

The product of its (nonzero) digits is 16595712, while the sum is 59.

The spelling of 674720287709 in words is "six hundred seventy-four billion, seven hundred twenty million, two hundred eighty-seven thousand, seven hundred nine".