11694947994 has 48 divisors (see below), whose sum is σ = 26918498880. Its totient is φ = 3803228640.

The previous prime is 11694947987. The next prime is 11694948011. The reversal of 11694947994 is 49974949611.

11694947994 is a `hidden beast` number, since 11 + 69 + 4 + 9 + 479 + 94 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273534 + ... + 313385.

It is an arithmetic number, because the mean of its divisors is an integer number (560802060).

Almost surely, 2^11694947994 is an apocalyptic number.

11694947994 is an abundant number, since it is smaller than the sum of its proper divisors (15223550886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11694947994 is an equidigital number, since it uses as much as digits as its factorization.

11694947994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586977 (or 586965 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 11694947994 in words is "eleven billion, six hundred ninety-four million, nine hundred forty-seven thousand, nine hundred ninety-four".