674164768838 has 16 divisors (see below), whose sum is σ = 1103302034640. Its totient is φ = 306404275200.

The previous prime is 674164768831. The next prime is 674164768867. The reversal of 674164768838 is 838867461476.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674164768831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1511003 + ... + 1905638.

It is an arithmetic number, because the mean of its divisors is an integer number (68956377165).

Almost surely, 2^674164768838 is an apocalyptic number.

674164768838 is a deficient number, since it is larger than the sum of its proper divisors (429137265802).

674164768838 is a wasteful number, since it uses less digits than its factorization.

674164768838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425623.

The product of its digits is 260112384, while the sum is 68.

The spelling of 674164768838 in words is "six hundred seventy-four billion, one hundred sixty-four million, seven hundred sixty-eight thousand, eight hundred thirty-eight".