40657650571 has 2 divisors, whose sum is σ = 40657650572. Its totient is φ = 40657650570.

The previous prime is 40657650497. The next prime is 40657650581. The reversal of 40657650571 is 17505675604.

It is a happy number.

40657650571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40657650571 - 2¹¹ = 40657648523 is a prime.

It is not a weakly prime, because it can be changed into another prime (40657650581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20328825285 + 20328825286.

It is an arithmetic number, because the mean of its divisors is an integer number (20328825286).

Almost surely, 2^40657650571 is an apocalyptic number.

40657650571 is a deficient number, since it is larger than the sum of its proper divisors (1).

40657650571 is an equidigital number, since it uses as much as digits as its factorization.

40657650571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 40657650571 in words is "forty billion, six hundred fifty-seven million, six hundred fifty thousand, five hundred seventy-one".