2942719857761 has 2 divisors, whose sum is σ = 2942719857762. Its totient is φ = 2942719857760.

The previous prime is 2942719857667. The next prime is 2942719857799. The reversal of 2942719857761 is 1677589172492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1586529180625 + 1356190677136 = 1259575^2 + 1164556^2 .

It is a cyclic number.

It is not a de Polignac number, because 2942719857761 - 2³⁸ = 2667841950817 is a prime.

It is a super-2 number, since 2×2942719857761² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2942719857691 and 2942719857700.

It is not a weakly prime, because it can be changed into another prime (2942719857061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471359928880 + 1471359928881.

It is an arithmetic number, because the mean of its divisors is an integer number (1471359928881).

Almost surely, 2^{2942719857761} is an apocalyptic number.

It is an amenable number.

2942719857761 is a deficient number, since it is larger than the sum of its proper divisors (1).

2942719857761 is an equidigital number, since it uses as much as digits as its factorization.

2942719857761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 106686720, while the sum is 68.

The spelling of 2942719857761 in words is "two trillion, nine hundred forty-two billion, seven hundred nineteen million, eight hundred fifty-seven thousand, seven hundred sixty-one".