14227771637 has 2 divisors, whose sum is σ = 14227771638. Its totient is φ = 14227771636.

The previous prime is 14227771619. The next prime is 14227771643. The reversal of 14227771637 is 73617772241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11958297316 + 2269474321 = 109354^2 + 47639^2 .

It is a cyclic number.

It is not a de Polignac number, because 14227771637 - 2⁶ = 14227771573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14227771591 and 14227771600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14227777637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7113885818 + 7113885819.

It is an arithmetic number, because the mean of its divisors is an integer number (7113885819).

Almost surely, 2^14227771637 is an apocalyptic number.

It is an amenable number.

14227771637 is a deficient number, since it is larger than the sum of its proper divisors (1).

14227771637 is an equidigital number, since it uses as much as digits as its factorization.

14227771637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691488, while the sum is 47.

The spelling of 14227771637 in words is "fourteen billion, two hundred twenty-seven million, seven hundred seventy-one thousand, six hundred thirty-seven".