2240123697689 has 4 divisors (see below), whose sum is σ = 2371895679924. Its totient is φ = 2108351715456.

The previous prime is 2240123697659. The next prime is 2240123697743. The reversal of 2240123697689 is 9867963210422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1137816889225 + 1102306808464 = 1066685^2 + 1049908^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240123697689 - 2⁸ = 2240123697433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2240123697629) 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, 65885991092 + ... + 65885991125.

It is an arithmetic number, because the mean of its divisors is an integer number (592973919981).

Almost surely, 2^{2240123697689} is an apocalyptic number.

It is an amenable number.

2240123697689 is a deficient number, since it is larger than the sum of its proper divisors (131771982235).

2240123697689 is a wasteful number, since it uses less digits than its factorization.

2240123697689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131771982234.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 2240123697689 in words is "two trillion, two hundred forty billion, one hundred twenty-three million, six hundred ninety-seven thousand, six hundred eighty-nine".