4478078708745 has 64 divisors (see below), whose sum is σ = 7420862791680. Its totient is φ = 2303518694400.

The previous prime is 4478078708737. The next prime is 4478078708813. The reversal of 4478078708745 is 5478078708744.

It is not a de Polignac number, because 4478078708745 - 2³ = 4478078708737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4478078708745.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 651732660 + ... + 651739530.

It is an arithmetic number, because the mean of its divisors is an integer number (115950981120).

Almost surely, 2^{4478078708745} is an apocalyptic number.

It is an amenable number.

4478078708745 is a deficient number, since it is larger than the sum of its proper divisors (2942784082935).

4478078708745 is a wasteful number, since it uses less digits than its factorization.

4478078708745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11406.

The product of its (nonzero) digits is 393379840, while the sum is 69.

Subtracting 4478078708745 from its reverse (5478078708744), we obtain a palindrome (999999999999).

The spelling of 4478078708745 in words is "four trillion, four hundred seventy-eight billion, seventy-eight million, seven hundred eight thousand, seven hundred forty-five".