1854791233793 has 2 divisors, whose sum is σ = 1854791233794. Its totient is φ = 1854791233792.

The previous prime is 1854791233751. The next prime is 1854791233819. The reversal of 1854791233793 is 3973321974581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1633225212529 + 221566021264 = 1277977^2 + 470708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1854791233793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1854791233723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 927395616896 + 927395616897.

It is an arithmetic number, because the mean of its divisors is an integer number (927395616897).

Almost surely, 2^{1854791233793} is an apocalyptic number.

It is an amenable number.

1854791233793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1854791233793 is an equidigital number, since it uses as much as digits as its factorization.

1854791233793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 62.

The spelling of 1854791233793 in words is "one trillion, eight hundred fifty-four billion, seven hundred ninety-one million, two hundred thirty-three thousand, seven hundred ninety-three".