28114543578 has 16 divisors (see below), whose sum is σ = 61340822496. Its totient is φ = 8519558640.

The previous prime is 28114543571. The next prime is 28114543579. The reversal of 28114543578 is 87534541182.

It is a super-2 number, since 2×28114543578² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28114543571) 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, 212988901 + ... + 212989032.

It is an arithmetic number, because the mean of its divisors is an integer number (3833801406).

Almost surely, 2^28114543578 is an apocalyptic number.

28114543578 is an abundant number, since it is smaller than the sum of its proper divisors (33226278918).

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

28114543578 is a wasteful number, since it uses less digits than its factorization.

28114543578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425977949.

The product of its digits is 1075200, while the sum is 48.

The spelling of 28114543578 in words is "twenty-eight billion, one hundred fourteen million, five hundred forty-three thousand, five hundred seventy-eight".