6140981907 has 6 divisors (see below), whose sum is σ = 8870307212. Its totient is φ = 4093987932.

The previous prime is 6140981881. The next prime is 6140981911. The reversal of 6140981907 is 7091890416.

It is a happy number.

It is not a de Polignac number, because 6140981907 - 2⁶ = 6140981843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6140981947) 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, 341165653 + ... + 341165670.

Almost surely, 2^6140981907 is an apocalyptic number.

6140981907 is a deficient number, since it is larger than the sum of its proper divisors (2729325305).

6140981907 is a wasteful number, since it uses less digits than its factorization.

6140981907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682331329 (or 682331326 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 6140981907 is about 78364.4173525204. The cubic root of 6140981907 is about 1831.2428384411.

The spelling of 6140981907 in words is "six billion, one hundred forty million, nine hundred eighty-one thousand, nine hundred seven".