28478214486 has 24 divisors (see below), whose sum is σ = 64950314520. Its totient is φ = 8993120256.

The previous prime is 28478214473. The next prime is 28478214491. The reversal of 28478214486 is 68441287482.

28478214486 is a `hidden beast` number, since 2 + 84 + 7 + 82 + 1 + 4 + 486 = 666.

It is a super-2 number, since 2×28478214486² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 41634475 + ... + 41635158.

It is an arithmetic number, because the mean of its divisors is an integer number (2706263105).

Almost surely, 2^28478214486 is an apocalyptic number.

28478214486 is an abundant number, since it is smaller than the sum of its proper divisors (36472100034).

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

28478214486 is a wasteful number, since it uses less digits than its factorization.

28478214486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83269660 (or 83269657 counting only the distinct ones).

The product of its digits is 5505024, while the sum is 54.

The spelling of 28478214486 in words is "twenty-eight billion, four hundred seventy-eight million, two hundred fourteen thousand, four hundred eighty-six".