245713505776465 has 8 divisors (see below), whose sum is σ = 294861004128360. Its totient is φ = 196567606490112.

The previous prime is 245713505776391. The next prime is 245713505776517. The reversal of 245713505776465 is 564677505317542.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 106347264375361 + 139366241401104 = 10312481^2 + 11805348^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245713505776465 - 2⁴³ = 236917412754257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245713505776465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399428304 + ... + 400042993.

It is an arithmetic number, because the mean of its divisors is an integer number (36857625516045).

Almost surely, 2^{245713505776465} is an apocalyptic number.

It is an amenable number.

245713505776465 is a deficient number, since it is larger than the sum of its proper divisors (49147498351895).

245713505776465 is an equidigital number, since it uses as much as digits as its factorization.

245713505776465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799532771.

The product of its (nonzero) digits is 740880000, while the sum is 67.

The spelling of 245713505776465 in words is "two hundred forty-five trillion, seven hundred thirteen billion, five hundred five million, seven hundred seventy-six thousand, four hundred sixty-five".