478612832587847 has 4 divisors (see below), whose sum is σ = 478615325568000. Its totient is φ = 478610339607696.

The previous prime is 478612832587831. The next prime is 478612832587853. The reversal of 478612832587847 is 748785238216874.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 478612832587847 - 2⁴ = 478612832587831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478612832587447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246202078 + ... + 1246586075.

It is an arithmetic number, because the mean of its divisors is an integer number (119653831392000).

Almost surely, 2^{478612832587847} is an apocalyptic number.

478612832587847 is a deficient number, since it is larger than the sum of its proper divisors (2492980153).

478612832587847 is a wasteful number, since it uses less digits than its factorization.

478612832587847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492980152.

The product of its digits is 8092385280, while the sum is 80.

The spelling of 478612832587847 in words is "four hundred seventy-eight trillion, six hundred twelve billion, eight hundred thirty-two million, five hundred eighty-seven thousand, eight hundred forty-seven".