6999999994 has 8 divisors (see below), whose sum is σ = 11307692340. Its totient is φ = 3230769216.

The previous prime is 6999999989. The next prime is 7000000001. The reversal of 6999999994 is 4999999996.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6848390025 + 151609969 = 82755^2 + 12313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134615359 + ... + 134615410.

Almost surely, 2^6999999994 is an apocalyptic number.

6999999994 is a deficient number, since it is larger than the sum of its proper divisors (4307692346).

6999999994 is a wasteful number, since it uses less digits than its factorization.

6999999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269230784.

The product of its digits is 1033121304, while the sum is 82.

The square root of 6999999994 is about 83666.0026175507. The cubic root of 6999999994 is about 1912.9311822258.

It can be divided in two parts, 6 and 999999994, that added together give a 9-th power (1000000000 = 10⁹).

The spelling of 6999999994 in words is "six billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".