40856569037 has 2 divisors, whose sum is σ = 40856569038. Its totient is φ = 40856569036.

The previous prime is 40856569007. The next prime is 40856569063. The reversal of 40856569037 is 73096565804.

40856569037 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 can be written as a sum of positive squares in only one way, i.e., 38341947721 + 2514621316 = 195811^2 + 50146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40856569037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40856569037.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40856569007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20428284518 + 20428284519.

It is an arithmetic number, because the mean of its divisors is an integer number (20428284519).

Almost surely, 2^40856569037 is an apocalyptic number.

It is an amenable number.

40856569037 is a deficient number, since it is larger than the sum of its proper divisors (1).

40856569037 is an equidigital number, since it uses as much as digits as its factorization.

40856569037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 40856569037 in words is "forty billion, eight hundred fifty-six million, five hundred sixty-nine thousand, thirty-seven".