45106265821 has 2 divisors, whose sum is σ = 45106265822. Its totient is φ = 45106265820.

The previous prime is 45106265713. The next prime is 45106265843. The reversal of 45106265821 is 12856260154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44272788921 + 833476900 = 210411^2 + 28870^2 .

It is a cyclic number.

It is not a de Polignac number, because 45106265821 - 2²³ = 45097877213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45106265851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22553132910 + 22553132911.

It is an arithmetic number, because the mean of its divisors is an integer number (22553132911).

Almost surely, 2^45106265821 is an apocalyptic number.

It is an amenable number.

45106265821 is a deficient number, since it is larger than the sum of its proper divisors (1).

45106265821 is an equidigital number, since it uses as much as digits as its factorization.

45106265821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 45106265821 in words is "forty-five billion, one hundred six million, two hundred sixty-five thousand, eight hundred twenty-one".