478047117239 has 4 divisors (see below), whose sum is σ = 478376125656. Its totient is φ = 477718108824.

The previous prime is 478047117151. The next prime is 478047117241. The reversal of 478047117239 is 932711740874.

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 478047117239 - 2⁸ = 478047116983 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 (478047117259) 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, 164502029 + ... + 164504934.

It is an arithmetic number, because the mean of its divisors is an integer number (119594031414).

Almost surely, 2^478047117239 is an apocalyptic number.

478047117239 is a deficient number, since it is larger than the sum of its proper divisors (329008417).

478047117239 is a wasteful number, since it uses less digits than its factorization.

478047117239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329008416.

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 478047117239 in words is "four hundred seventy-eight billion, forty-seven million, one hundred seventeen thousand, two hundred thirty-nine".