40805283887 has 2 divisors, whose sum is σ = 40805283888. Its totient is φ = 40805283886.

The previous prime is 40805283853. The next prime is 40805283931. The reversal of 40805283887 is 78838250804.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40805283887 - 2²⁸ = 40536848431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40805289887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20402641943 + 20402641944.

It is an arithmetic number, because the mean of its divisors is an integer number (20402641944).

Almost surely, 2^40805283887 is an apocalyptic number.

40805283887 is a deficient number, since it is larger than the sum of its proper divisors (1).

40805283887 is an equidigital number, since it uses as much as digits as its factorization.

40805283887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 40805283887 in words is "forty billion, eight hundred five million, two hundred eighty-three thousand, eight hundred eighty-seven".