5478663015 has 320 divisors, whose sum is σ = 12980183040. Its totient is φ = 2149908480.

The previous prime is 5478663011. The next prime is 5478663019. The reversal of 5478663015 is 5103668745.

5478663015 is a `hidden beast` number, since 5 + 4 + 7 + 8 + 6 + 630 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (5478663011) and next prime (5478663019).

It is not a de Polignac number, because 5478663015 - 2² = 5478663011 is a prime.

It is a super-3 number, since 3×5478663015³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5478663011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 28386759 + ... + 28386951.

It is an arithmetic number, because the mean of its divisors is an integer number (40563072).

Almost surely, 2^5478663015 is an apocalyptic number.

5478663015 is an abundant number, since it is smaller than the sum of its proper divisors (7501520025).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5478663015 is a wasteful number, since it uses less digits than its factorization.

5478663015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 5478663015 is about 74017.9911575557. The cubic root of 5478663015 is about 1762.8885734478. Note that the first 3 decimals are identical.

The spelling of 5478663015 in words is "five billion, four hundred seventy-eight million, six hundred sixty-three thousand, fifteen".