478544018147 has 16 divisors (see below), whose sum is σ = 518710637760. Its totient is φ = 438857557632.

The previous prime is 478544018087. The next prime is 478544018153. The reversal of 478544018147 is 741810445874.

It is not a de Polignac number, because 478544018147 - 2³⁸ = 203666111203 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478544018047) 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, 21098729 + ... + 21121397.

It is an arithmetic number, because the mean of its divisors is an integer number (32419414860).

Almost surely, 2^478544018147 is an apocalyptic number.

478544018147 is a deficient number, since it is larger than the sum of its proper divisors (40166619613).

478544018147 is a wasteful number, since it uses less digits than its factorization.

478544018147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33182.

The product of its (nonzero) digits is 4014080, while the sum is 53.

The spelling of 478544018147 in words is "four hundred seventy-eight billion, five hundred forty-four million, eighteen thousand, one hundred forty-seven".