236243490993 has 24 divisors (see below), whose sum is σ = 362496076800. Its totient is φ = 147837537504.

The previous prime is 236243490991. The next prime is 236243491109. The reversal of 236243490993 is 399094342632.

236243490993 is a `hidden beast` number, since 2 + 3 + 62 + 4 + 3 + 490 + 9 + 93 = 666.

It is not a de Polignac number, because 236243490993 - 2¹ = 236243490991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (236243490991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6318705 + ... + 6355982.

It is an arithmetic number, because the mean of its divisors is an integer number (15104003200).

Almost surely, 2^236243490993 is an apocalyptic number.

It is an amenable number.

236243490993 is a deficient number, since it is larger than the sum of its proper divisors (126252585807).

236243490993 is a wasteful number, since it uses less digits than its factorization.

236243490993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12674821 (or 12674818 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 54.

The spelling of 236243490993 in words is "two hundred thirty-six billion, two hundred forty-three million, four hundred ninety thousand, nine hundred ninety-three".