11858886215 has 16 divisors (see below), whose sum is σ = 15678074016. Its totient is φ = 8539248000.

The previous prime is 11858886211. The next prime is 11858886253. The reversal of 11858886215 is 51268885811.

11858886215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11858886215 - 2² = 11858886211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11858886211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1061852 + ... + 1072961.

It is an arithmetic number, because the mean of its divisors is an integer number (979879626).

Almost surely, 2^11858886215 is an apocalyptic number.

11858886215 is a deficient number, since it is larger than the sum of its proper divisors (3819187801).

11858886215 is a wasteful number, since it uses less digits than its factorization.

11858886215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134930.

The product of its digits is 1228800, while the sum is 53.

The spelling of 11858886215 in words is "eleven billion, eight hundred fifty-eight million, eight hundred eighty-six thousand, two hundred fifteen".