236748819893 has 2 divisors, whose sum is σ = 236748819894. Its totient is φ = 236748819892.

The previous prime is 236748819889. The next prime is 236748819899. The reversal of 236748819893 is 398918847632.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207623301649 + 29125518244 = 455657^2 + 170662^2 .

It is a cyclic number.

It is not a de Polignac number, because 236748819893 - 2² = 236748819889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236748819899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118374409946 + 118374409947.

It is an arithmetic number, because the mean of its divisors is an integer number (118374409947).

Almost surely, 2^236748819893 is an apocalyptic number.

It is an amenable number.

236748819893 is a deficient number, since it is larger than the sum of its proper divisors (1).

236748819893 is an equidigital number, since it uses as much as digits as its factorization.

236748819893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125411328, while the sum is 68.

The spelling of 236748819893 in words is "two hundred thirty-six billion, seven hundred forty-eight million, eight hundred nineteen thousand, eight hundred ninety-three".