2135458866 has 8 divisors (see below), whose sum is σ = 4270917744. Its totient is φ = 711819620.

The previous prime is 2135458861. The next prime is 2135458879. The reversal of 2135458866 is 6688545312.

It is a happy number.

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

2135458866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2135458861) 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, 177954900 + ... + 177954911.

It is an arithmetic number, because the mean of its divisors is an integer number (533864718).

Almost surely, 2^2135458866 is an apocalyptic number.

2135458866 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135458866 is a wasteful number, since it uses less digits than its factorization.

2135458866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355909816.

The product of its digits is 1382400, while the sum is 48.

The square root of 2135458866 is about 46211.0253727398. The cubic root of 2135458866 is about 1287.7465749002.

The spelling of 2135458866 in words is "two billion, one hundred thirty-five million, four hundred fifty-eight thousand, eight hundred sixty-six".