45138401773 has 2 divisors, whose sum is σ = 45138401774. Its totient is φ = 45138401772.

The previous prime is 45138401753. The next prime is 45138401809. The reversal of 45138401773 is 37710483154.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45138401764 + 9 = 212458^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 45138401773 - 2²⁹ = 44601530861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45138401713) 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, 22569200886 + 22569200887.

It is an arithmetic number, because the mean of its divisors is an integer number (22569200887).

Almost surely, 2^45138401773 is an apocalyptic number.

It is an amenable number.

45138401773 is a deficient number, since it is larger than the sum of its proper divisors (1).

45138401773 is an equidigital number, since it uses as much as digits as its factorization.

45138401773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 45138401773 in words is "forty-five billion, one hundred thirty-eight million, four hundred one thousand, seven hundred seventy-three".