193902063139 has 2 divisors, whose sum is σ = 193902063140. Its totient is φ = 193902063138.

The previous prime is 193902063119. The next prime is 193902063149. The reversal of 193902063139 is 931360209391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193902063139 - 2¹¹ = 193902061091 is a prime.

It is not a weakly prime, because it can be changed into another prime (193902063119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96951031569 + 96951031570.

It is an arithmetic number, because the mean of its divisors is an integer number (96951031570).

Almost surely, 2^193902063139 is an apocalyptic number.

193902063139 is a deficient number, since it is larger than the sum of its proper divisors (1).

193902063139 is an equidigital number, since it uses as much as digits as its factorization.

193902063139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 46.

The spelling of 193902063139 in words is "one hundred ninety-three billion, nine hundred two million, sixty-three thousand, one hundred thirty-nine".