28427484344 has 64 divisors (see below), whose sum is σ = 62912163840. Its totient is φ = 11784372480.

The previous prime is 28427484329. The next prime is 28427484367. The reversal of 28427484344 is 44348472482.

It is a super-2 number, since 2×28427484344² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28427484292 and 28427484301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6842972 + ... + 6847124.

It is an arithmetic number, because the mean of its divisors is an integer number (983002560).

Almost surely, 2^28427484344 is an apocalyptic number.

It is an amenable number.

28427484344 is an abundant number, since it is smaller than the sum of its proper divisors (34484679496).

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

28427484344 is a wasteful number, since it uses less digits than its factorization.

28427484344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140 (or 8136 counting only the distinct ones).

The product of its digits is 5505024, while the sum is 50.

The spelling of 28427484344 in words is "twenty-eight billion, four hundred twenty-seven million, four hundred eighty-four thousand, three hundred forty-four".