478636280008669 has 8 divisors (see below), whose sum is σ = 503827865735040. Its totient is φ = 453444714539136.

The previous prime is 478636280008603. The next prime is 478636280008771. The reversal of 478636280008669 is 966800082636874.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478636280008669 is a prime.

It is a super-2 number, since 2×478636280008669² (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 (478606280008669) 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, 80538012 + ... + 86276554.

It is an arithmetic number, because the mean of its divisors is an integer number (62978483216880).

Almost surely, 2^{478636280008669} is an apocalyptic number.

It is an amenable number.

478636280008669 is a deficient number, since it is larger than the sum of its proper divisors (25191585726371).

478636280008669 is a wasteful number, since it uses less digits than its factorization.

478636280008669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128419.

The product of its (nonzero) digits is 1003290624, while the sum is 73.

The spelling of 478636280008669 in words is "four hundred seventy-eight trillion, six hundred thirty-six billion, two hundred eighty million, eight thousand, six hundred sixty-nine".