28546878527 has 8 divisors (see below), whose sum is σ = 28723388160. Its totient is φ = 28370651040.

The previous prime is 28546878511. The next prime is 28546878539. The reversal of 28546878527 is 72587864582.

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

It is not a de Polignac number, because 28546878527 - 2⁴ = 28546878511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28546878527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28546871527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134273 + ... + 274085.

It is an arithmetic number, because the mean of its divisors is an integer number (3590423520).

Almost surely, 2^28546878527 is an apocalyptic number.

28546878527 is a deficient number, since it is larger than the sum of its proper divisors (176509633).

28546878527 is a wasteful number, since it uses less digits than its factorization.

28546878527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141073.

The product of its digits is 60211200, while the sum is 62.

The spelling of 28546878527 in words is "twenty-eight billion, five hundred forty-six million, eight hundred seventy-eight thousand, five hundred twenty-seven".