478099222658 has 18 divisors (see below), whose sum is σ = 756909485289. Its totient is φ = 226459252152.

The previous prime is 478099222649. The next prime is 478099222723. The reversal of 478099222658 is 856222990874.

It can be written as a sum of positive squares in 2 ways, for example, as 356317067929 + 121782154729 = 596923^2 + 348973^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=488927.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 478099222658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18566360 + ... + 18592092.

Almost surely, 2^478099222658 is an apocalyptic number.

478099222658 is a deficient number, since it is larger than the sum of its proper divisors (278810262631).

478099222658 is an frugal number, since it uses more digits than its factorization.

478099222658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51506 (or 25754 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 478099222658 in words is "four hundred seventy-eight billion, ninety-nine million, two hundred twenty-two thousand, six hundred fifty-eight".