2861722455071 has 2 divisors, whose sum is σ = 2861722455072. Its totient is φ = 2861722455070.

The previous prime is 2861722455037. The next prime is 2861722455133. The reversal of 2861722455071 is 1705542271682.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2861722455071 is a prime.

It is a super-2 number, since 2×2861722455071² (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 (2861722458071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430861227535 + 1430861227536.

It is an arithmetic number, because the mean of its divisors is an integer number (1430861227536).

Almost surely, 2^{2861722455071} is an apocalyptic number.

2861722455071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861722455071 is an equidigital number, since it uses as much as digits as its factorization.

2861722455071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 2861722455071 in words is "two trillion, eight hundred sixty-one billion, seven hundred twenty-two million, four hundred fifty-five thousand, seventy-one".