45545222777 has 2 divisors, whose sum is σ = 45545222778. Its totient is φ = 45545222776.

The previous prime is 45545222719. The next prime is 45545222809. The reversal of 45545222777 is 77722254554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44815196416 + 730026361 = 211696^2 + 27019^2 .

It is a cyclic number.

It is not a de Polignac number, because 45545222777 - 2¹⁰ = 45545221753 is a prime.

It is not a weakly prime, because it can be changed into another prime (45545222707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772611388 + 22772611389.

It is an arithmetic number, because the mean of its divisors is an integer number (22772611389).

Almost surely, 2^45545222777 is an apocalyptic number.

It is an amenable number.

45545222777 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545222777 is an equidigital number, since it uses as much as digits as its factorization.

45545222777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5488000, while the sum is 50.

The spelling of 45545222777 in words is "forty-five billion, five hundred forty-five million, two hundred twenty-two thousand, seven hundred seventy-seven".