2183856278291 has 2 divisors, whose sum is σ = 2183856278292. Its totient is φ = 2183856278290.

The previous prime is 2183856278281. The next prime is 2183856278293. The reversal of 2183856278291 is 1928726583812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2183856278291 - 2³⁸ = 1908978371347 is a prime.

It is a Sophie Germain prime.

Together with 2183856278293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2183856278293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1091928139145 + 1091928139146.

It is an arithmetic number, because the mean of its divisors is an integer number (1091928139146).

Almost surely, 2^{2183856278291} is an apocalyptic number.

2183856278291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2183856278291 is an equidigital number, since it uses as much as digits as its factorization.

2183856278291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23224320, while the sum is 62.

The spelling of 2183856278291 in words is "two trillion, one hundred eighty-three billion, eight hundred fifty-six million, two hundred seventy-eight thousand, two hundred ninety-one".