39142074193 has 2 divisors, whose sum is σ = 39142074194. Its totient is φ = 39142074192.

The previous prime is 39142074187. The next prime is 39142074197. The reversal of 39142074193 is 39147024193.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35593727569 + 3548346624 = 188663^2 + 59568^2 .

It is a cyclic number.

It is not a de Polignac number, because 39142074193 - 2²⁵ = 39108519761 is a prime.

It is not a weakly prime, because it can be changed into another prime (39142074197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19571037096 + 19571037097.

It is an arithmetic number, because the mean of its divisors is an integer number (19571037097).

Almost surely, 2^39142074193 is an apocalyptic number.

It is an amenable number.

39142074193 is a deficient number, since it is larger than the sum of its proper divisors (1).

39142074193 is an equidigital number, since it uses as much as digits as its factorization.

39142074193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 39142074193 in words is "thirty-nine billion, one hundred forty-two million, seventy-four thousand, one hundred ninety-three".