36396168399391 has 2 divisors, whose sum is σ = 36396168399392. Its totient is φ = 36396168399390.

The previous prime is 36396168399323. The next prime is 36396168399403. The reversal of 36396168399391 is 19399386169363.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36396168399391 - 2¹⁹ = 36396167875103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36396168399691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18198084199695 + 18198084199696.

It is an arithmetic number, because the mean of its divisors is an integer number (18198084199696).

Almost surely, 2^{36396168399391} is an apocalyptic number.

36396168399391 is a deficient number, since it is larger than the sum of its proper divisors (1).

36396168399391 is an equidigital number, since it uses as much as digits as its factorization.

36396168399391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 918330048, while the sum is 76.

The spelling of 36396168399391 in words is "thirty-six trillion, three hundred ninety-six billion, one hundred sixty-eight million, three hundred ninety-nine thousand, three hundred ninety-one".