1361451874445 has 8 divisors (see below), whose sum is σ = 1759414730136. Its totient is φ = 1005379845696.

The previous prime is 1361451874403. The next prime is 1361451874553. The reversal of 1361451874445 is 5444781541631.

It can be written as a sum of positive squares in 4 ways, for example, as 5545334089 + 1355906540356 = 74467^2 + 1164434^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361451874445 - 2¹⁶ = 1361451808909 is a prime.

It is a Duffinian 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, 10472706662 + ... + 10472706791.

It is an arithmetic number, because the mean of its divisors is an integer number (219926841267).

Almost surely, 2^{1361451874445} is an apocalyptic number.

It is an amenable number.

1361451874445 is a deficient number, since it is larger than the sum of its proper divisors (397962855691).

1361451874445 is a wasteful number, since it uses less digits than its factorization.

1361451874445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20945413471.

The product of its digits is 6451200, while the sum is 53.

The spelling of 1361451874445 in words is "one trillion, three hundred sixty-one billion, four hundred fifty-one million, eight hundred seventy-four thousand, four hundred forty-five".