40675481857 has 2 divisors, whose sum is σ = 40675481858. Its totient is φ = 40675481856.

The previous prime is 40675481849. The next prime is 40675481863. The reversal of 40675481857 is 75818457604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37218512241 + 3456969616 = 192921^2 + 58796^2 .

It is a cyclic number.

It is not a de Polignac number, because 40675481857 - 2³ = 40675481849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40675481798 and 40675481807.

It is not a weakly prime, because it can be changed into another prime (40675481887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20337740928 + 20337740929.

It is an arithmetic number, because the mean of its divisors is an integer number (20337740929).

Almost surely, 2^40675481857 is an apocalyptic number.

It is an amenable number.

40675481857 is a deficient number, since it is larger than the sum of its proper divisors (1).

40675481857 is an equidigital number, since it uses as much as digits as its factorization.

40675481857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 40675481857 in words is "forty billion, six hundred seventy-five million, four hundred eighty-one thousand, eight hundred fifty-seven".