40440880004489 has 2 divisors, whose sum is σ = 40440880004490. Its totient is φ = 40440880004488.

The previous prime is 40440880004453. The next prime is 40440880004509. The reversal of 40440880004489 is 98440008804404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36648252288400 + 3792627716089 = 6053780^2 + 1947467^2 .

It is a cyclic number.

It is not a de Polignac number, because 40440880004489 - 2⁸ = 40440880004233 is a prime.

It is a super-2 number, since 2×40440880004489² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40440880004489.

It is not a weakly prime, because it can be changed into another prime (40440880004989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20220440002244 + 20220440002245.

It is an arithmetic number, because the mean of its divisors is an integer number (20220440002245).

Almost surely, 2^{40440880004489} is an apocalyptic number.

It is an amenable number.

40440880004489 is a deficient number, since it is larger than the sum of its proper divisors (1).

40440880004489 is an equidigital number, since it uses as much as digits as its factorization.

40440880004489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4718592, while the sum is 53.

The spelling of 40440880004489 in words is "forty trillion, four hundred forty billion, eight hundred eighty million, four thousand, four hundred eighty-nine".