1373484785674 has 4 divisors (see below), whose sum is σ = 2060227178514. Its totient is φ = 686742392836.

The previous prime is 1373484785671. The next prime is 1373484785723. The reversal of 1373484785674 is 4765874843731.

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

It can be written as a sum of positive squares in only one way, i.e., 871902135049 + 501582650625 = 933757^2 + 708225^2 .

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1373484785671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343371196417 + ... + 343371196420.

Almost surely, 2^{1373484785674} is an apocalyptic number.

1373484785674 is a deficient number, since it is larger than the sum of its proper divisors (686742392840).

1373484785674 is an equidigital number, since it uses as much as digits as its factorization.

1373484785674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686742392839.

The product of its digits is 379330560, while the sum is 67.

The spelling of 1373484785674 in words is "one trillion, three hundred seventy-three billion, four hundred eighty-four million, seven hundred eighty-five thousand, six hundred seventy-four".