240559007881 has 4 divisors (see below), whose sum is σ = 240560111764. Its totient is φ = 240557904000.

The previous prime is 240559007849. The next prime is 240559007917. The reversal of 240559007881 is 188700955042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 37465473600 + 203093534281 = 193560^2 + 450659^2 .

It is a cyclic number.

It is not a de Polignac number, because 240559007881 - 2⁵ = 240559007849 is a prime.

It is a super-2 number, since 2×240559007881² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240559007281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103740 + ... + 701341.

It is an arithmetic number, because the mean of its divisors is an integer number (60140027941).

Almost surely, 2^240559007881 is an apocalyptic number.

It is an amenable number.

240559007881 is a deficient number, since it is larger than the sum of its proper divisors (1103883).

240559007881 is an equidigital number, since it uses as much as digits as its factorization.

240559007881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103882.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 240559007881 in words is "two hundred forty billion, five hundred fifty-nine million, seven thousand, eight hundred eighty-one".