236791939891 has 6 divisors (see below), whose sum is σ = 256407840420. Its totient is φ = 218577175128.

The previous prime is 236791939889. The next prime is 236791939921. The reversal of 236791939891 is 198939197632.

236791939891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 236791939891 - 2¹ = 236791939889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (236791939841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 700567701 + ... + 700568038.

It is an arithmetic number, because the mean of its divisors is an integer number (42734640070).

Almost surely, 2^236791939891 is an apocalyptic number.

236791939891 is a deficient number, since it is larger than the sum of its proper divisors (19615900529).

236791939891 is a wasteful number, since it uses less digits than its factorization.

236791939891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401135765 (or 1401135752 counting only the distinct ones).

The product of its digits is 39680928, while the sum is 67.

The spelling of 236791939891 in words is "two hundred thirty-six billion, seven hundred ninety-one million, nine hundred thirty-nine thousand, eight hundred ninety-one".