6999968794 has 24 divisors (see below), whose sum is σ = 13153789908. Its totient is φ = 2769217920.

The previous prime is 6999968777. The next prime is 6999968797. The reversal of 6999968794 is 4978699996.

It can be written as a sum of positive squares in 2 ways, for example, as 6833171569 + 166797225 = 82663^2 + 12915^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6999968794.

It is not an unprimeable number, because it can be changed into a prime (6999968797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2745967 + ... + 2748514.

Almost surely, 2^6999968794 is an apocalyptic number.

6999968794 is a deficient number, since it is larger than the sum of its proper divisors (6153821114).

6999968794 is a wasteful number, since it uses less digits than its factorization.

6999968794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494510 (or 5494503 counting only the distinct ones).

The product of its digits is 476171136, while the sum is 76.

The square root of 6999968794 is about 83665.8161616798. The cubic root of 6999968794 is about 1912.9283401524.

The spelling of 6999968794 in words is "six billion, nine hundred ninety-nine million, nine hundred sixty-eight thousand, seven hundred ninety-four".