40844554769 has 2 divisors, whose sum is σ = 40844554770. Its totient is φ = 40844554768.

The previous prime is 40844554763. The next prime is 40844554789. The reversal of 40844554769 is 96745544804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30106414144 + 10738140625 = 173512^2 + 103625^2 .

It is a cyclic number.

It is not a de Polignac number, because 40844554769 - 2¹⁶ = 40844489233 is a prime.

It is a super-2 number, since 2×40844554769² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40844554763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20422277384 + 20422277385.

It is an arithmetic number, because the mean of its divisors is an integer number (20422277385).

Almost surely, 2^40844554769 is an apocalyptic number.

It is an amenable number.

40844554769 is a deficient number, since it is larger than the sum of its proper divisors (1).

40844554769 is an equidigital number, since it uses as much as digits as its factorization.

40844554769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 40844554769 in words is "forty billion, eight hundred forty-four million, five hundred fifty-four thousand, seven hundred sixty-nine".