240461656288463 has 2 divisors, whose sum is σ = 240461656288464. Its totient is φ = 240461656288462.

The previous prime is 240461656288457. The next prime is 240461656288489. The reversal of 240461656288463 is 364882656164042.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240461656288463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240461656288463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240461656288433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120230828144231 + 120230828144232.

It is an arithmetic number, because the mean of its divisors is an integer number (120230828144232).

Almost surely, 2^{240461656288463} is an apocalyptic number.

240461656288463 is a deficient number, since it is larger than the sum of its proper divisors (1).

240461656288463 is an equidigital number, since it uses as much as digits as its factorization.

240461656288463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 318504960, while the sum is 65.

The spelling of 240461656288463 in words is "two hundred forty trillion, four hundred sixty-one billion, six hundred fifty-six million, two hundred eighty-eight thousand, four hundred sixty-three".