40422248861 has 2 divisors, whose sum is σ = 40422248862. Its totient is φ = 40422248860.

The previous prime is 40422248843. The next prime is 40422248897. The reversal of 40422248861 is 16884222404.

40422248861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32571225625 + 7851023236 = 180475^2 + 88606^2 .

It is a cyclic number.

It is not a de Polignac number, because 40422248861 - 2¹⁰ = 40422247837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40422248261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20211124430 + 20211124431.

It is an arithmetic number, because the mean of its divisors is an integer number (20211124431).

Almost surely, 2^40422248861 is an apocalyptic number.

It is an amenable number.

40422248861 is a deficient number, since it is larger than the sum of its proper divisors (1).

40422248861 is an equidigital number, since it uses as much as digits as its factorization.

40422248861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196608, while the sum is 41.

The spelling of 40422248861 in words is "forty billion, four hundred twenty-two million, two hundred forty-eight thousand, eight hundred sixty-one".