11399571847 has 8 divisors (see below), whose sum is σ = 11593289232. Its totient is φ = 11206075200.

The previous prime is 11399571839. The next prime is 11399571851. The reversal of 11399571847 is 74817599311.

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

It is a cyclic number.

It is not a de Polignac number, because 11399571847 - 2³ = 11399571839 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 (11399571347) 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, 50688 + ... + 159274.

It is an arithmetic number, because the mean of its divisors is an integer number (1449161154).

Almost surely, 2^11399571847 is an apocalyptic number.

11399571847 is a deficient number, since it is larger than the sum of its proper divisors (193717385).

11399571847 is a wasteful number, since it uses less digits than its factorization.

11399571847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110369.

The product of its digits is 1905120, while the sum is 55.

The spelling of 11399571847 in words is "eleven billion, three hundred ninety-nine million, five hundred seventy-one thousand, eight hundred forty-seven".