478513503851 has 16 divisors (see below), whose sum is σ = 481726206720. Its totient is φ = 475312865280.

The previous prime is 478513503841. The next prime is 478513503859. The reversal of 478513503851 is 158305315874.

It is a cyclic number.

It is not a de Polignac number, because 478513503851 - 2¹⁸ = 478513241707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 478513503851.

It is not an unprimeable number, because it can be changed into a prime (478513503859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262485926 + ... + 262487748.

It is an arithmetic number, because the mean of its divisors is an integer number (30107887920).

Almost surely, 2^478513503851 is an apocalyptic number.

478513503851 is a deficient number, since it is larger than the sum of its proper divisors (3212702869).

478513503851 is a wasteful number, since it uses less digits than its factorization.

478513503851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4246.

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 478513503851 in words is "four hundred seventy-eight billion, five hundred thirteen million, five hundred three thousand, eight hundred fifty-one".