6918989950 has 24 divisors (see below), whose sum is σ = 13428859248. Its totient is φ = 2647265280.

The previous prime is 6918989941. The next prime is 6918989963. The reversal of 6918989950 is 599898196.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3007107 + ... + 3009406.

It is an arithmetic number, because the mean of its divisors is an integer number (559535802).

Almost surely, 2^6918989950 is an apocalyptic number.

6918989950 is a deficient number, since it is larger than the sum of its proper divisors (6509869298).

6918989950 is a wasteful number, since it uses less digits than its factorization.

6918989950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016548 (or 6016543 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 64.

The square root of 6918989950 is about 83180.4661564240. The cubic root of 6918989950 is about 1905.5231672087.

The spelling of 6918989950 in words is "six billion, nine hundred eighteen million, nine hundred eighty-nine thousand, nine hundred fifty".