11916972698 has 8 divisors (see below), whose sum is σ = 18926956692. Its totient is φ = 5607987136.

The previous prime is 11916972689. The next prime is 11916972703. The reversal of 11916972698 is 89627961911.

It can be written as a sum of positive squares in 2 ways, for example, as 11899973569 + 16999129 = 109087^2 + 4123^2 .

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, 175249565 + ... + 175249632.

Almost surely, 2^11916972698 is an apocalyptic number.

11916972698 is a deficient number, since it is larger than the sum of its proper divisors (7009983994).

11916972698 is a wasteful number, since it uses less digits than its factorization.

11916972698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350499216.

The product of its digits is 2939328, while the sum is 59.

The spelling of 11916972698 in words is "eleven billion, nine hundred sixteen million, nine hundred seventy-two thousand, six hundred ninety-eight".