11918800005 has 16 divisors (see below), whose sum is σ = 21794377344. Its totient is φ = 5448594240.

The previous prime is 11918799967. The next prime is 11918800037. The reversal of 11918800005 is 50000881911.

It is not a de Polignac number, because 11918800005 - 2¹⁰ = 11918798981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56756086 + ... + 56756295.

It is an arithmetic number, because the mean of its divisors is an integer number (1362148584).

Almost surely, 2^11918800005 is an apocalyptic number.

11918800005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11918800005 is a deficient number, since it is larger than the sum of its proper divisors (9875577339).

11918800005 is a wasteful number, since it uses less digits than its factorization.

11918800005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113512396.

The product of its (nonzero) digits is 2880, while the sum is 33.

The spelling of 11918800005 in words is "eleven billion, nine hundred eighteen million, eight hundred thousand, five".