11974643696 has 10 divisors (see below), whose sum is σ = 23200872192. Its totient is φ = 5987321840.

The previous prime is 11974643689. The next prime is 11974643713. The reversal of 11974643696 is 69634647911.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374207600 + ... + 374207631.

Almost surely, 2^11974643696 is an apocalyptic number.

11974643696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11974643696 is a deficient number, since it is larger than the sum of its proper divisors (11226228496).

11974643696 is an equidigital number, since it uses as much as digits as its factorization.

11974643696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748415239 (or 748415233 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 56.

The spelling of 11974643696 in words is "eleven billion, nine hundred seventy-four million, six hundred forty-three thousand, six hundred ninety-six".