2135886866 has 8 divisors (see below), whose sum is σ = 3210520320. Its totient is φ = 1065713428.

The previous prime is 2135886853. The next prime is 2135886869. The reversal of 2135886866 is 6686885312.

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

It is a super-4 number, since 4×2135886866⁴ (a number of 38 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (2135886869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113806 + ... + 1115721.

It is an arithmetic number, because the mean of its divisors is an integer number (401315040).

Almost surely, 2^2135886866 is an apocalyptic number.

2135886866 is a deficient number, since it is larger than the sum of its proper divisors (1074633454).

2135886866 is a wasteful number, since it uses less digits than its factorization.

2135886866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230008.

The product of its digits is 3317760, while the sum is 53.

The square root of 2135886866 is about 46215.6560702107. The cubic root of 2135886866 is about 1287.8326014876.

The spelling of 2135886866 in words is "two billion, one hundred thirty-five million, eight hundred eighty-six thousand, eight hundred sixty-six".