674353859215 has 4 divisors (see below), whose sum is σ = 809224631064. Its totient is φ = 539483087368.

The previous prime is 674353859203. The next prime is 674353859219. The reversal of 674353859215 is 512958353476.

674353859215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674353859215 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 674353859215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674353859219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67435385917 + ... + 67435385926.

It is an arithmetic number, because the mean of its divisors is an integer number (202306157766).

Almost surely, 2^674353859215 is an apocalyptic number.

674353859215 is a deficient number, since it is larger than the sum of its proper divisors (134870771849).

674353859215 is a wasteful number, since it uses less digits than its factorization.

674353859215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134870771848.

The product of its digits is 27216000, while the sum is 58.

The spelling of 674353859215 in words is "six hundred seventy-four billion, three hundred fifty-three million, eight hundred fifty-nine thousand, two hundred fifteen".