478379728415 has 8 divisors (see below), whose sum is σ = 574059528000. Its totient is φ = 382701213472.

The previous prime is 478379728397. The next prime is 478379728427. The reversal of 478379728415 is 514827973874.

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 478379728415 - 2⁸ = 478379728159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969962 + ... + 1377528.

It is an arithmetic number, because the mean of its divisors is an integer number (71757441000).

Almost surely, 2^478379728415 is an apocalyptic number.

478379728415 is a deficient number, since it is larger than the sum of its proper divisors (95679799585).

478379728415 is a wasteful number, since it uses less digits than its factorization.

478379728415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642321.

The product of its digits is 94832640, while the sum is 65.

The spelling of 478379728415 in words is "four hundred seventy-eight billion, three hundred seventy-nine million, seven hundred twenty-eight thousand, four hundred fifteen".