11684401917 has 8 divisors (see below), whose sum is σ = 15581820096. Its totient is φ = 7788292512.

The previous prime is 11684401871. The next prime is 11684401951. The reversal of 11684401917 is 71910448611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11684401917 - 2⁶ = 11684401853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11684401987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306168 + ... + 342209.

It is an arithmetic number, because the mean of its divisors is an integer number (1947727512).

Almost surely, 2^11684401917 is an apocalyptic number.

It is an amenable number.

11684401917 is a deficient number, since it is larger than the sum of its proper divisors (3897418179).

11684401917 is an equidigital number, since it uses as much as digits as its factorization.

11684401917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654387.

The product of its (nonzero) digits is 48384, while the sum is 42.

The spelling of 11684401917 in words is "eleven billion, six hundred eighty-four million, four hundred one thousand, nine hundred seventeen".