22785201638327 has 2 divisors, whose sum is σ = 22785201638328. Its totient is φ = 22785201638326.

The previous prime is 22785201638281. The next prime is 22785201638399. The reversal of 22785201638327 is 72383610258722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22785201638327 - 2¹⁸ = 22785201376183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22785201638827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11392600819163 + 11392600819164.

It is an arithmetic number, because the mean of its divisors is an integer number (11392600819164).

Almost surely, 2^{22785201638327} is an apocalyptic number.

22785201638327 is a deficient number, since it is larger than the sum of its proper divisors (1).

22785201638327 is an equidigital number, since it uses as much as digits as its factorization.

22785201638327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 22785201638327 in words is "twenty-two trillion, seven hundred eighty-five billion, two hundred one million, six hundred thirty-eight thousand, three hundred twenty-seven".