245978814718 has 16 divisors (see below), whose sum is σ = 454114735200. Its totient is φ = 97310300256.

The previous prime is 245978814649. The next prime is 245978814761. The reversal of 245978814718 is 817418879542.

It is a self number, because there is not a number n which added to its sum of digits gives 245978814718.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675765793 + ... + 675766156.

It is an arithmetic number, because the mean of its divisors is an integer number (28382170950).

Almost surely, 2^245978814718 is an apocalyptic number.

245978814718 is a deficient number, since it is larger than the sum of its proper divisors (208135920482).

245978814718 is a wasteful number, since it uses less digits than its factorization.

245978814718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351531971.

The product of its digits is 36126720, while the sum is 64.

It can be divided in two parts, 245978 and 814718, that added together give a triangular number (1060696 = T₁₄₅₆).

The spelling of 245978814718 in words is "two hundred forty-five billion, nine hundred seventy-eight million, eight hundred fourteen thousand, seven hundred eighteen".