1839781132793 has 4 divisors (see below), whose sum is σ = 1903221861540. Its totient is φ = 1776340404048.

The previous prime is 1839781132771. The next prime is 1839781132799. The reversal of 1839781132793 is 3972311879381.

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 1484323115584 + 355458017209 = 1218328^2 + 596203^2 .

It is a cyclic number.

It is not a de Polignac number, because 1839781132793 - 2⁶ = 1839781132729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1839781132799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31720364330 + ... + 31720364387.

It is an arithmetic number, because the mean of its divisors is an integer number (475805465385).

Almost surely, 2^{1839781132793} is an apocalyptic number.

It is an amenable number.

1839781132793 is a deficient number, since it is larger than the sum of its proper divisors (63440728747).

1839781132793 is an equidigital number, since it uses as much as digits as its factorization.

1839781132793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63440728746.

The product of its digits is 13716864, while the sum is 62.

The spelling of 1839781132793 in words is "one trillion, eight hundred thirty-nine billion, seven hundred eighty-one million, one hundred thirty-two thousand, seven hundred ninety-three".