11727778895 has 16 divisors (see below), whose sum is σ = 16152851520. Its totient is φ = 8007385344.

The previous prime is 11727778883. The next prime is 11727778921. The reversal of 11727778895 is 59887772711.

It is not a de Polignac number, because 11727778895 - 2¹⁰ = 11727777871 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710900 + ... + 727209.

It is an arithmetic number, because the mean of its divisors is an integer number (1009553220).

Almost surely, 2^11727778895 is an apocalyptic number.

11727778895 is a deficient number, since it is larger than the sum of its proper divisors (4425072625).

11727778895 is a wasteful number, since it uses less digits than its factorization.

11727778895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438354.

The product of its digits is 13829760, while the sum is 62.

The spelling of 11727778895 in words is "eleven billion, seven hundred twenty-seven million, seven hundred seventy-eight thousand, eight hundred ninety-five".