2856118224991 has 2 divisors, whose sum is σ = 2856118224992. Its totient is φ = 2856118224990.

The previous prime is 2856118224901. The next prime is 2856118224997. The reversal of 2856118224991 is 1994228116582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2856118224991 - 2⁷ = 2856118224863 is a prime.

It is a super-2 number, since 2×2856118224991² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2856118224997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428059112495 + 1428059112496.

It is an arithmetic number, because the mean of its divisors is an integer number (1428059112496).

Almost surely, 2^{2856118224991} is an apocalyptic number.

2856118224991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2856118224991 is an equidigital number, since it uses as much as digits as its factorization.

2856118224991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 58.

The spelling of 2856118224991 in words is "two trillion, eight hundred fifty-six billion, one hundred eighteen million, two hundred twenty-four thousand, nine hundred ninety-one".