1376027805321 has 12 divisors (see below), whose sum is σ = 2140487697348. Its totient is φ = 846786341664.

The previous prime is 1376027805307. The next prime is 1376027805359. The reversal of 1376027805321 is 1235087206731.

1376027805321 is a `hidden beast` number, since 1 + 3 + 7 + 602 + 7 + 8 + 0 + 5 + 32 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 565595747721 + 810432057600 = 752061^2 + 900240^2 .

It is not a de Polignac number, because 1376027805321 - 2⁷ = 1376027805193 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1376027805301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5880460590 + ... + 5880460823.

It is an arithmetic number, because the mean of its divisors is an integer number (178373974779).

Almost surely, 2^{1376027805321} is an apocalyptic number.

It is an amenable number.

1376027805321 is a deficient number, since it is larger than the sum of its proper divisors (764459892027).

1376027805321 is a wasteful number, since it uses less digits than its factorization.

1376027805321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11760921432 (or 11760921429 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 1376027805321 in words is "one trillion, three hundred seventy-six billion, twenty-seven million, eight hundred five thousand, three hundred twenty-one".