240455640427 has 2 divisors, whose sum is σ = 240455640428. Its totient is φ = 240455640426.

The previous prime is 240455640409. The next prime is 240455640487. The reversal of 240455640427 is 724046554042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240455640427 is a prime.

It is not a weakly prime, because it can be changed into another prime (240455640487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120227820213 + 120227820214.

It is an arithmetic number, because the mean of its divisors is an integer number (120227820214).

Almost surely, 2^240455640427 is an apocalyptic number.

240455640427 is a deficient number, since it is larger than the sum of its proper divisors (1).

240455640427 is an equidigital number, since it uses as much as digits as its factorization.

240455640427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1075200, while the sum is 43.

The spelling of 240455640427 in words is "two hundred forty billion, four hundred fifty-five million, six hundred forty thousand, four hundred twenty-seven".