245912842816 has 21 divisors (see below), whose sum is σ = 487991169939. Its totient is φ = 122954437824.

The previous prime is 245912842759. The next prime is 245912842817. The reversal of 245912842816 is 618248219542.

The square root of 245912842816 is 495896.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245912842817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3936175 + ... + 3998161.

It is an arithmetic number, because the mean of its divisors is an integer number (23237674759).

Almost surely, 2^245912842816 is an apocalyptic number.

245912842816 is the 495896-th square number.

It is an amenable number.

245912842816 is a deficient number, since it is larger than the sum of its proper divisors (242078327123).

245912842816 is an frugal number, since it uses more digits than its factorization.

245912842816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123986 (or 61989 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 52.

The spelling of 245912842816 in words is "two hundred forty-five billion, nine hundred twelve million, eight hundred forty-two thousand, eight hundred sixteen".