40361036857 has 2 divisors, whose sum is σ = 40361036858. Its totient is φ = 40361036856.

The previous prime is 40361036851. The next prime is 40361036869. The reversal of 40361036857 is 75863016304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36918163881 + 3442872976 = 192141^2 + 58676^2 .

It is a cyclic number.

It is not a de Polignac number, because 40361036857 - 2²³ = 40352648249 is a prime.

It is a super-2 number, since 2×40361036857² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40361036851) 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, 20180518428 + 20180518429.

It is an arithmetic number, because the mean of its divisors is an integer number (20180518429).

Almost surely, 2^40361036857 is an apocalyptic number.

It is an amenable number.

40361036857 is a deficient number, since it is larger than the sum of its proper divisors (1).

40361036857 is an equidigital number, since it uses as much as digits as its factorization.

40361036857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 40361036857 in words is "forty billion, three hundred sixty-one million, thirty-six thousand, eight hundred fifty-seven".