479439146188778 has 8 divisors (see below), whose sum is σ = 721812441495360. Its totient is φ = 238834999023660.

The previous prime is 479439146188621. The next prime is 479439146188799. The reversal of 479439146188778 is 877881641934974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 479439146188778.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442287034688 + ... + 442287035771.

It is an arithmetic number, because the mean of its divisors is an integer number (90226555186920).

Almost surely, 2^{479439146188778} is an apocalyptic number.

479439146188778 is a deficient number, since it is larger than the sum of its proper divisors (242373295306582).

479439146188778 is a wasteful number, since it uses less digits than its factorization.

479439146188778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884574070732.

The product of its digits is 16387080192, while the sum is 86.

The spelling of 479439146188778 in words is "four hundred seventy-nine trillion, four hundred thirty-nine billion, one hundred forty-six million, one hundred eighty-eight thousand, seven hundred seventy-eight".