40224842861 has 4 divisors (see below), whose sum is σ = 45971248992. Its totient is φ = 34478436732.

The previous prime is 40224842843. The next prime is 40224842869. The reversal of 40224842861 is 16824842204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40224842861 - 2²² = 40220648557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40224842869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873203055 + ... + 2873203068.

It is an arithmetic number, because the mean of its divisors is an integer number (11492812248).

Almost surely, 2^40224842861 is an apocalyptic number.

It is an amenable number.

40224842861 is a deficient number, since it is larger than the sum of its proper divisors (5746406131).

40224842861 is an equidigital number, since it uses as much as digits as its factorization.

40224842861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5746406130.

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

The spelling of 40224842861 in words is "forty billion, two hundred twenty-four million, eight hundred forty-two thousand, eight hundred sixty-one".