11916673407 has 24 divisors (see below), whose sum is σ = 17289359984. Its totient is φ = 7909259904.

The previous prime is 11916673397. The next prime is 11916673427. The reversal of 11916673407 is 70437661911.

11916673407 is a `hidden beast` number, since 1 + 19 + 166 + 73 + 407 = 666.

It is not a de Polignac number, because 11916673407 - 2⁸ = 11916673151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11916673427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2806428 + ... + 2810670.

Almost surely, 2^11916673407 is an apocalyptic number.

11916673407 is a deficient number, since it is larger than the sum of its proper divisors (5372686577).

11916673407 is a wasteful number, since it uses less digits than its factorization.

11916673407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5559 (or 5556 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 11916673407 in words is "eleven billion, nine hundred sixteen million, six hundred seventy-three thousand, four hundred seven".