45037186609 has 2 divisors, whose sum is σ = 45037186610. Its totient is φ = 45037186608.

The previous prime is 45037186589. The next prime is 45037186631. The reversal of 45037186609 is 90668173054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44723790400 + 313396209 = 211480^2 + 17703^2 .

It is a cyclic number.

It is not a de Polignac number, because 45037186609 - 2¹⁵ = 45037153841 is a prime.

It is not a weakly prime, because it can be changed into another prime (45037186309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22518593304 + 22518593305.

It is an arithmetic number, because the mean of its divisors is an integer number (22518593305).

Almost surely, 2^45037186609 is an apocalyptic number.

It is an amenable number.

45037186609 is a deficient number, since it is larger than the sum of its proper divisors (1).

45037186609 is an equidigital number, since it uses as much as digits as its factorization.

45037186609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 45037186609 in words is "forty-five billion, thirty-seven million, one hundred eighty-six thousand, six hundred nine".