240040640377 has 2 divisors, whose sum is σ = 240040640378. Its totient is φ = 240040640376.

The previous prime is 240040640261. The next prime is 240040640417. The reversal of 240040640377 is 773046040042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225918645481 + 14121994896 = 475309^2 + 118836^2 .

It is a cyclic number.

It is not a de Polignac number, because 240040640377 - 2⁷ = 240040640249 is a prime.

It is not a weakly prime, because it can be changed into another prime (240040649377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120020320188 + 120020320189.

It is an arithmetic number, because the mean of its divisors is an integer number (120020320189).

Almost surely, 2^240040640377 is an apocalyptic number.

It is an amenable number.

240040640377 is a deficient number, since it is larger than the sum of its proper divisors (1).

240040640377 is an equidigital number, since it uses as much as digits as its factorization.

240040640377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 240040640377 in words is "two hundred forty billion, forty million, six hundred forty thousand, three hundred seventy-seven".