2383942741721 has 2 divisors, whose sum is σ = 2383942741722. Its totient is φ = 2383942741720.

The previous prime is 2383942741667. The next prime is 2383942741727. The reversal of 2383942741721 is 1271472493832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1985069655625 + 398873086096 = 1408925^2 + 631564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2383942741721 - 2⁶ = 2383942741657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2383942741727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1191971370860 + 1191971370861.

It is an arithmetic number, because the mean of its divisors is an integer number (1191971370861).

Almost surely, 2^{2383942741721} is an apocalyptic number.

It is an amenable number.

2383942741721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2383942741721 is an equidigital number, since it uses as much as digits as its factorization.

2383942741721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The spelling of 2383942741721 in words is "two trillion, three hundred eighty-three billion, nine hundred forty-two million, seven hundred forty-one thousand, seven hundred twenty-one".