199702042272739 has 2 divisors, whose sum is σ = 199702042272740. Its totient is φ = 199702042272738.

The previous prime is 199702042272659. The next prime is 199702042272763. The reversal of 199702042272739 is 937272240207991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199702042272739 - 2¹⁵ = 199702042239971 is a prime.

It is not a weakly prime, because it can be changed into another prime (199702042272539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99851021136369 + 99851021136370.

It is an arithmetic number, because the mean of its divisors is an integer number (99851021136370).

Almost surely, 2^{199702042272739} is an apocalyptic number.

199702042272739 is a deficient number, since it is larger than the sum of its proper divisors (1).

199702042272739 is an equidigital number, since it uses as much as digits as its factorization.

199702042272739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48009024, while the sum is 64.

The spelling of 199702042272739 in words is "one hundred ninety-nine trillion, seven hundred two billion, forty-two million, two hundred seventy-two thousand, seven hundred thirty-nine".