674286781264 has 20 divisors (see below), whose sum is σ = 1306479807520. Its totient is φ = 337130701920.

The previous prime is 674286781261. The next prime is 674286781313. The reversal of 674286781264 is 462187682476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674286781261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347034 + ... + 1212025.

It is an arithmetic number, because the mean of its divisors is an integer number (65323990376).

Almost surely, 2^674286781264 is an apocalyptic number.

It is an amenable number.

674286781264 is a deficient number, since it is larger than the sum of its proper divisors (632193026256).

674286781264 is a wasteful number, since it uses less digits than its factorization.

674286781264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586098 (or 1586092 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 61.

The spelling of 674286781264 in words is "six hundred seventy-four billion, two hundred eighty-six million, seven hundred eighty-one thousand, two hundred sixty-four".