363940222391 has 2 divisors, whose sum is σ = 363940222392. Its totient is φ = 363940222390.

The previous prime is 363940222379. The next prime is 363940222411. The reversal of 363940222391 is 193222049363.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 363940222391 - 2¹⁸ = 363939960247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (363940222691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181970111195 + 181970111196.

It is an arithmetic number, because the mean of its divisors is an integer number (181970111196).

Almost surely, 2^363940222391 is an apocalyptic number.

363940222391 is a deficient number, since it is larger than the sum of its proper divisors (1).

363940222391 is an equidigital number, since it uses as much as digits as its factorization.

363940222391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 363940222391 in words is "three hundred sixty-three billion, nine hundred forty million, two hundred twenty-two thousand, three hundred ninety-one".