11916972707 has 4 divisors (see below), whose sum is σ = 11923890840. Its totient is φ = 11910054576.

The previous prime is 11916972703. The next prime is 11916972713. The reversal of 11916972707 is 70727961911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11916972707 - 2² = 11916972703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11916972703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3456482 + ... + 3459927.

It is an arithmetic number, because the mean of its divisors is an integer number (2980972710).

Almost surely, 2^11916972707 is an apocalyptic number.

11916972707 is a deficient number, since it is larger than the sum of its proper divisors (6918133).

11916972707 is an equidigital number, since it uses as much as digits as its factorization.

11916972707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6918132.

The product of its (nonzero) digits is 333396, while the sum is 50.

The spelling of 11916972707 in words is "eleven billion, nine hundred sixteen million, nine hundred seventy-two thousand, seven hundred seven".