45019813859 has 2 divisors, whose sum is σ = 45019813860. Its totient is φ = 45019813858.

The previous prime is 45019813837. The next prime is 45019813873. The reversal of 45019813859 is 95831891054.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45019813859 - 2¹² = 45019809763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45019813859.

It is not a weakly prime, because it can be changed into another prime (45019813459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22509906929 + 22509906930.

It is an arithmetic number, because the mean of its divisors is an integer number (22509906930).

Almost surely, 2^45019813859 is an apocalyptic number.

45019813859 is a deficient number, since it is larger than the sum of its proper divisors (1).

45019813859 is an equidigital number, since it uses as much as digits as its factorization.

45019813859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 53.

The spelling of 45019813859 in words is "forty-five billion, nineteen million, eight hundred thirteen thousand, eight hundred fifty-nine".