478630819547999 has 8 divisors (see below), whose sum is σ = 482327220617088. Its totient is φ = 474935065913880.

The previous prime is 478630819547971. The next prime is 478630819548019. The reversal of 478630819547999 is 999745918036874.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 478630819547999 - 2⁸ = 478630819547743 is a prime.

It is a super-2 number, since 2×478630819547999² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478630819547599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160374437 + ... + 163331630.

It is an arithmetic number, because the mean of its divisors is an integer number (60290902577136).

Almost surely, 2^{478630819547999} is an apocalyptic number.

478630819547999 is a deficient number, since it is larger than the sum of its proper divisors (3696401069089).

478630819547999 is a wasteful number, since it uses less digits than its factorization.

478630819547999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323717485.

The product of its (nonzero) digits is 29628426240, while the sum is 89.

The spelling of 478630819547999 in words is "four hundred seventy-eight trillion, six hundred thirty billion, eight hundred nineteen million, five hundred forty-seven thousand, nine hundred ninety-nine".