40210844887 has 2 divisors, whose sum is σ = 40210844888. Its totient is φ = 40210844886.

The previous prime is 40210844857. The next prime is 40210844893. The reversal of 40210844887 is 78844801204.

40210844887 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 40210844887 - 2¹⁹ = 40210320599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40210844827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20105422443 + 20105422444.

It is an arithmetic number, because the mean of its divisors is an integer number (20105422444).

Almost surely, 2^40210844887 is an apocalyptic number.

40210844887 is a deficient number, since it is larger than the sum of its proper divisors (1).

40210844887 is an equidigital number, since it uses as much as digits as its factorization.

40210844887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 458752, while the sum is 46.

The spelling of 40210844887 in words is "forty billion, two hundred ten million, eight hundred forty-four thousand, eight hundred eighty-seven".