478687834551 has 12 divisors (see below), whose sum is σ = 643948716008. Its totient is φ = 316301080704.

The previous prime is 478687834531. The next prime is 478687834601. The reversal of 478687834551 is 155438786874.

It is not a de Polignac number, because 478687834551 - 2¹¹ = 478687832503 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 (478687834511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6209740 + ... + 6286353.

Almost surely, 2^478687834551 is an apocalyptic number.

478687834551 is a deficient number, since it is larger than the sum of its proper divisors (165260881457).

478687834551 is a wasteful number, since it uses less digits than its factorization.

478687834551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12496322 (or 12496209 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 66.

The spelling of 478687834551 in words is "four hundred seventy-eight billion, six hundred eighty-seven million, eight hundred thirty-four thousand, five hundred fifty-one".