40044080077 has 2 divisors, whose sum is σ = 40044080078. Its totient is φ = 40044080076.

The previous prime is 40044080071. The next prime is 40044080107. The reversal of 40044080077 is 77008044004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39749991876 + 294088201 = 199374^2 + 17149^2 .

It is a cyclic number.

It is not a de Polignac number, because 40044080077 - 2⁷ = 40044079949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40044080071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20022040038 + 20022040039.

It is an arithmetic number, because the mean of its divisors is an integer number (20022040039).

Almost surely, 2^40044080077 is an apocalyptic number.

It is an amenable number.

40044080077 is a deficient number, since it is larger than the sum of its proper divisors (1).

40044080077 is an equidigital number, since it uses as much as digits as its factorization.

40044080077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 34.

The spelling of 40044080077 in words is "forty billion, forty-four million, eighty thousand, seventy-seven".