40143524557 has 2 divisors, whose sum is σ = 40143524558. Its totient is φ = 40143524556.

The previous prime is 40143524507. The next prime is 40143524563. The reversal of 40143524557 is 75542534104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34632837801 + 5510686756 = 186099^2 + 74234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40143524557 is a prime.

It is a super-2 number, since 2×40143524557² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40143524507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20071762278 + 20071762279.

It is an arithmetic number, because the mean of its divisors is an integer number (20071762279).

Almost surely, 2^40143524557 is an apocalyptic number.

It is an amenable number.

40143524557 is a deficient number, since it is larger than the sum of its proper divisors (1).

40143524557 is an equidigital number, since it uses as much as digits as its factorization.

40143524557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 40143524557 in words is "forty billion, one hundred forty-three million, five hundred twenty-four thousand, five hundred fifty-seven".