264440245245971 has 2 divisors, whose sum is σ = 264440245245972. Its totient is φ = 264440245245970.

The previous prime is 264440245245959. The next prime is 264440245246049. The reversal of 264440245245971 is 179542542044462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264440245245971 - 2⁶ = 264440245245907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264440245245971.

It is not a weakly prime, because it can be changed into another prime (264440245245271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132220122622985 + 132220122622986.

It is an arithmetic number, because the mean of its divisors is an integer number (132220122622986).

Almost surely, 2^{264440245245971} is an apocalyptic number.

264440245245971 is a deficient number, since it is larger than the sum of its proper divisors (1).

264440245245971 is an equidigital number, since it uses as much as digits as its factorization.

264440245245971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77414400, while the sum is 59.

The spelling of 264440245245971 in words is "two hundred sixty-four trillion, four hundred forty billion, two hundred forty-five million, two hundred forty-five thousand, nine hundred seventy-one".