37445545789 has 2 divisors, whose sum is σ = 37445545790. Its totient is φ = 37445545788.

The previous prime is 37445545769. The next prime is 37445545799. The reversal of 37445545789 is 98754554473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30411872100 + 7033673689 = 174390^2 + 83867^2 .

It is a cyclic number.

It is not a de Polignac number, because 37445545789 - 2¹⁷ = 37445414717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37445545729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18722772894 + 18722772895.

It is an arithmetic number, because the mean of its divisors is an integer number (18722772895).

Almost surely, 2^37445545789 is an apocalyptic number.

It is an amenable number.

37445545789 is a deficient number, since it is larger than the sum of its proper divisors (1).

37445545789 is an equidigital number, since it uses as much as digits as its factorization.

37445545789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672000, while the sum is 61.

The spelling of 37445545789 in words is "thirty-seven billion, four hundred forty-five million, five hundred forty-five thousand, seven hundred eighty-nine".