1384873674785 has 4 divisors (see below), whose sum is σ = 1661848409748. Its totient is φ = 1107898939824.

The previous prime is 1384873674733. The next prime is 1384873674803. The reversal of 1384873674785 is 5874763784831.

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

It can be written as a sum of positive squares in 2 ways, for example, as 619710605089 + 765163069696 = 787217^2 + 874736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1384873674785 - 2⁸ = 1384873674529 is a prime.

It is a super-2 number, since 2×1384873674785² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138487367474 + ... + 138487367483.

It is an arithmetic number, because the mean of its divisors is an integer number (415462102437).

Almost surely, 2^{1384873674785} is an apocalyptic number.

It is an amenable number.

1384873674785 is a deficient number, since it is larger than the sum of its proper divisors (276974734963).

1384873674785 is an equidigital number, since it uses as much as digits as its factorization.

1384873674785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276974734962.

The product of its digits is 758661120, while the sum is 71.

The spelling of 1384873674785 in words is "one trillion, three hundred eighty-four billion, eight hundred seventy-three million, six hundred seventy-four thousand, seven hundred eighty-five".