2533756866 has 16 divisors (see below), whose sum is σ = 5287840704. Its totient is φ = 807864464.

The previous prime is 2533756859. The next prime is 2533756867. The reversal of 2533756866 is 6686573352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2533756867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9180141 + ... + 9180416.

It is an arithmetic number, because the mean of its divisors is an integer number (330490044).

Almost surely, 2^2533756866 is an apocalyptic number.

2533756866 is an abundant number, since it is smaller than the sum of its proper divisors (2754083838).

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

2533756866 is a wasteful number, since it uses less digits than its factorization.

2533756866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18360585.

The product of its digits is 5443200, while the sum is 51.

The square root of 2533756866 is about 50336.4367630447. The cubic root of 2533756866 is about 1363.2902001659.

The spelling of 2533756866 in words is "two billion, five hundred thirty-three million, seven hundred fifty-six thousand, eight hundred sixty-six".