240123424649 has 2 divisors, whose sum is σ = 240123424650. Its totient is φ = 240123424648.

The previous prime is 240123424643. The next prime is 240123424669. The reversal of 240123424649 is 946424321042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134194005625 + 105929419024 = 366325^2 + 325468^2 .

It is a cyclic number.

It is not a de Polignac number, because 240123424649 - 2⁴ = 240123424633 is a prime.

It is not a weakly prime, because it can be changed into another prime (240123424643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120061712324 + 120061712325.

It is an arithmetic number, because the mean of its divisors is an integer number (120061712325).

Almost surely, 2^240123424649 is an apocalyptic number.

It is an amenable number.

240123424649 is a deficient number, since it is larger than the sum of its proper divisors (1).

240123424649 is an equidigital number, since it uses as much as digits as its factorization.

240123424649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 240123424649 in words is "two hundred forty billion, one hundred twenty-three million, four hundred twenty-four thousand, six hundred forty-nine".