2942719857641 has 2 divisors, whose sum is σ = 2942719857642. Its totient is φ = 2942719857640.

The previous prime is 2942719857619. The next prime is 2942719857659. The reversal of 2942719857641 is 1467589172492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2929146675625 + 13573182016 = 1711475^2 + 116504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2942719857641 is a prime.

It is not a weakly prime, because it can be changed into another prime (2942719853641) 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, 1471359928820 + 1471359928821.

It is an arithmetic number, because the mean of its divisors is an integer number (1471359928821).

Almost surely, 2^{2942719857641} is an apocalyptic number.

It is an amenable number.

2942719857641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2942719857641 is an equidigital number, since it uses as much as digits as its factorization.

2942719857641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60963840, while the sum is 65.

The spelling of 2942719857641 in words is "two trillion, nine hundred forty-two billion, seven hundred nineteen million, eight hundred fifty-seven thousand, six hundred forty-one".