20227774843 has 2 divisors, whose sum is σ = 20227774844. Its totient is φ = 20227774842.

The previous prime is 20227774807. The next prime is 20227774901. The reversal of 20227774843 is 34847772202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20227774843 - 2²¹ = 20225677691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20227774793 and 20227774802.

It is not a weakly prime, because it can be changed into another prime (20227274843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10113887421 + 10113887422.

It is an arithmetic number, because the mean of its divisors is an integer number (10113887422).

Almost surely, 2^20227774843 is an apocalyptic number.

20227774843 is a deficient number, since it is larger than the sum of its proper divisors (1).

20227774843 is an equidigital number, since it uses as much as digits as its factorization.

20227774843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 46.

The spelling of 20227774843 in words is "twenty billion, two hundred twenty-seven million, seven hundred seventy-four thousand, eight hundred forty-three".