936824867989 has 2 divisors, whose sum is σ = 936824867990. Its totient is φ = 936824867988.

The previous prime is 936824867971. The next prime is 936824868013. The reversal of 936824867989 is 989768428639.

936824867989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783830456964 + 152994411025 = 885342^2 + 391145^2 .

It is a cyclic number.

It is not a de Polignac number, because 936824867989 - 2⁹ = 936824867477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (936824867969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 468412433994 + 468412433995.

It is an arithmetic number, because the mean of its divisors is an integer number (468412433995).

Almost surely, 2^936824867989 is an apocalyptic number.

It is an amenable number.

936824867989 is a deficient number, since it is larger than the sum of its proper divisors (1).

936824867989 is an equidigital number, since it uses as much as digits as its factorization.

936824867989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257403904, while the sum is 79.

The spelling of 936824867989 in words is "nine hundred thirty-six billion, eight hundred twenty-four million, eight hundred sixty-seven thousand, nine hundred eighty-nine".