28486236576 has 96 divisors (see below), whose sum is σ = 85734125568. Its totient is φ = 8112695040.

The previous prime is 28486236539. The next prime is 28486236593. The reversal of 28486236576 is 67563268482.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×28486236576² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 140841 + ... + 277143.

It is an arithmetic number, because the mean of its divisors is an integer number (893063808).

Almost surely, 2^28486236576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28486236576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42867062784).

28486236576 is an abundant number, since it is smaller than the sum of its proper divisors (57247888992).

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

28486236576 is a wasteful number, since it uses less digits than its factorization.

28486236576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136634 (or 136626 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 57.

The spelling of 28486236576 in words is "twenty-eight billion, four hundred eighty-six million, two hundred thirty-six thousand, five hundred seventy-six".