3681576899 has 32 divisors (see below), whose sum is σ = 5233890816. Its totient is φ = 2492305920.

The previous prime is 3681576893. The next prime is 3681576901. The reversal of 3681576899 is 9986751863.

It is a happy number.

It is not a de Polignac number, because 3681576899 - 2⁸ = 3681576643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3681576893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91157 + ... + 125190.

It is an arithmetic number, because the mean of its divisors is an integer number (163559088).

Almost surely, 2^3681576899 is an apocalyptic number.

3681576899 is a deficient number, since it is larger than the sum of its proper divisors (1552313917).

3681576899 is a wasteful number, since it uses less digits than its factorization.

3681576899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216395.

The product of its digits is 19595520, while the sum is 62.

The square root of 3681576899 is about 60675.9993654822. Note that the first 3 decimals coincide. The cubic root of 3681576899 is about 1544.1090157831.

The spelling of 3681576899 in words is "three billion, six hundred eighty-one million, five hundred seventy-six thousand, eight hundred ninety-nine".