8100245885 has 4 divisors (see below), whose sum is σ = 9720295068. Its totient is φ = 6480196704.

The previous prime is 8100245827. The next prime is 8100245887. The reversal of 8100245885 is 5885420018.

It is a happy number.

8100245885 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5885420018 = 2 ⋅2942710009.

It can be written as a sum of positive squares in 2 ways, for example, as 4062660121 + 4037585764 = 63739^2 + 63542^2 .

It is a cyclic number.

It is not a de Polignac number, because 8100245885 - 2¹⁸ = 8099983741 is a prime.

It is a super-2 number, since 2×8100245885² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8100245887) 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, 810024584 + ... + 810024593.

It is an arithmetic number, because the mean of its divisors is an integer number (2430073767).

Almost surely, 2^8100245885 is an apocalyptic number.

It is an amenable number.

8100245885 is a deficient number, since it is larger than the sum of its proper divisors (1620049183).

8100245885 is a wasteful number, since it uses less digits than its factorization.

8100245885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620049182.

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 8100245885 is about 90001.3660174111. The cubic root of 8100245885 is about 2008.3191714632.

The spelling of 8100245885 in words is "eight billion, one hundred million, two hundred forty-five thousand, eight hundred eighty-five".