478688251017 has 16 divisors (see below), whose sum is σ = 639865006272. Its totient is φ = 318319518720.

The previous prime is 478688251007. The next prime is 478688251037. The reversal of 478688251017 is 710152886874.

It is not a de Polignac number, because 478688251017 - 2¹⁰ = 478688249993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478688251007) 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, 1761273 + ... + 2014809.

It is an arithmetic number, because the mean of its divisors is an integer number (39991562892).

Almost surely, 2^478688251017 is an apocalyptic number.

It is an amenable number.

478688251017 is a deficient number, since it is larger than the sum of its proper divisors (161176755255).

478688251017 is a wasteful number, since it uses less digits than its factorization.

478688251017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255128.

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 478688251017 in words is "four hundred seventy-eight billion, six hundred eighty-eight million, two hundred fifty-one thousand, seventeen".