674834438478 has 16 divisors (see below), whose sum is σ = 1366753294080. Its totient is φ = 222097409976.

The previous prime is 674834438419. The next prime is 674834438507. The reversal of 674834438478 is 874834438476.

674834438478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711850200 + ... + 711851147.

It is an arithmetic number, because the mean of its divisors is an integer number (85422080880).

Almost surely, 2^674834438478 is an apocalyptic number.

674834438478 is an abundant number, since it is smaller than the sum of its proper divisors (691918855602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674834438478 is a wasteful number, since it uses less digits than its factorization.

674834438478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423701431.

The product of its digits is 346816512, while the sum is 66.

The spelling of 674834438478 in words is "six hundred seventy-four billion, eight hundred thirty-four million, four hundred thirty-eight thousand, four hundred seventy-eight".