6140117961 has 6 divisors (see below), whose sum is σ = 8869059290. Its totient is φ = 4093411968.

The previous prime is 6140117939. The next prime is 6140118037. The reversal of 6140117961 is 1697110416.

6140117961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3999297600 + 2140820361 = 63240^2 + 46269^2 .

It is not a de Polignac number, because 6140117961 - 2⁶ = 6140117897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6140117561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341117656 + ... + 341117673.

Almost surely, 2^6140117961 is an apocalyptic number.

It is an amenable number.

6140117961 is a deficient number, since it is larger than the sum of its proper divisors (2728941329).

6140117961 is a wasteful number, since it uses less digits than its factorization.

6140117961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682235335 (or 682235332 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 6140117961 is about 78358.9047970937. The cubic root of 6140117961 is about 1831.1569580858.

The spelling of 6140117961 in words is "six billion, one hundred forty million, one hundred seventeen thousand, nine hundred sixty-one".