74205050217139 has 2 divisors, whose sum is σ = 74205050217140. Its totient is φ = 74205050217138.

The previous prime is 74205050217041. The next prime is 74205050217187. The reversal of 74205050217139 is 93171205050247.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74205050217139 is a prime.

It is not a weakly prime, because it can be changed into another prime (74205050217539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37102525108569 + 37102525108570.

It is an arithmetic number, because the mean of its divisors is an integer number (37102525108570).

Almost surely, 2^{74205050217139} is an apocalyptic number.

74205050217139 is a deficient number, since it is larger than the sum of its proper divisors (1).

74205050217139 is an equidigital number, since it uses as much as digits as its factorization.

74205050217139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 74205050217139 in words is "seventy-four trillion, two hundred five billion, fifty million, two hundred seventeen thousand, one hundred thirty-nine".