10939390171 has 2 divisors, whose sum is σ = 10939390172. Its totient is φ = 10939390170.

The previous prime is 10939390139. The next prime is 10939390199. The reversal of 10939390171 is 17109393901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10939390171 - 2⁵ = 10939390139 is a prime.

It is not a weakly prime, because it can be changed into another prime (10939390471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5469695085 + 5469695086.

It is an arithmetic number, because the mean of its divisors is an integer number (5469695086).

Almost surely, 2^10939390171 is an apocalyptic number.

10939390171 is a deficient number, since it is larger than the sum of its proper divisors (1).

10939390171 is an equidigital number, since it uses as much as digits as its factorization.

10939390171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45927, while the sum is 43.

The spelling of 10939390171 in words is "ten billion, nine hundred thirty-nine million, three hundred ninety thousand, one hundred seventy-one".