31823005849 has 2 divisors, whose sum is σ = 31823005850. Its totient is φ = 31823005848.

The previous prime is 31823005777. The next prime is 31823005859. The reversal of 31823005849 is 94850032813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30361320025 + 1461685824 = 174245^2 + 38232^2 .

It is a cyclic number.

It is not a de Polignac number, because 31823005849 - 2¹¹ = 31823003801 is a prime.

It is not a weakly prime, because it can be changed into another prime (31823005859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15911502924 + 15911502925.

It is an arithmetic number, because the mean of its divisors is an integer number (15911502925).

Almost surely, 2^31823005849 is an apocalyptic number.

It is an amenable number.

31823005849 is a deficient number, since it is larger than the sum of its proper divisors (1).

31823005849 is an equidigital number, since it uses as much as digits as its factorization.

31823005849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 31823005849 in words is "thirty-one billion, eight hundred twenty-three million, five thousand, eight hundred forty-nine".