40677747529 has 2 divisors, whose sum is σ = 40677747530. Its totient is φ = 40677747528.

The previous prime is 40677747511. The next prime is 40677747553. The reversal of 40677747529 is 92574777604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23816205625 + 16861541904 = 154325^2 + 129852^2 .

It is a cyclic number.

It is not a de Polignac number, because 40677747529 - 2⁹ = 40677747017 is a prime.

It is not a weakly prime, because it can be changed into another prime (40677747589) 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, 20338873764 + 20338873765.

It is an arithmetic number, because the mean of its divisors is an integer number (20338873765).

Almost surely, 2^40677747529 is an apocalyptic number.

It is an amenable number.

40677747529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40677747529 is an equidigital number, since it uses as much as digits as its factorization.

40677747529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20744640, while the sum is 58.

The spelling of 40677747529 in words is "forty billion, six hundred seventy-seven million, seven hundred forty-seven thousand, five hundred twenty-nine".