240861097879 has 2 divisors, whose sum is σ = 240861097880. Its totient is φ = 240861097878.

The previous prime is 240861097877. The next prime is 240861097931. The reversal of 240861097879 is 978790168042.

240861097879 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 is a cyclic number.

It is not a de Polignac number, because 240861097879 - 2¹ = 240861097877 is a prime.

Together with 240861097877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240861097877) 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 as a sum of consecutive naturals, namely, 120430548939 + 120430548940.

It is an arithmetic number, because the mean of its divisors is an integer number (120430548940).

Almost surely, 2^240861097879 is an apocalyptic number.

240861097879 is a deficient number, since it is larger than the sum of its proper divisors (1).

240861097879 is an equidigital number, since it uses as much as digits as its factorization.

240861097879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 240861097879 in words is "two hundred forty billion, eight hundred sixty-one million, ninety-seven thousand, eight hundred seventy-nine".