28405112982 has 32 divisors (see below), whose sum is σ = 58035681792. Its totient is φ = 9264244704.

The previous prime is 28405112971. The next prime is 28405113013. The reversal of 28405112982 is 28921150482.

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, 1123108 + ... + 1148120.

It is an arithmetic number, because the mean of its divisors is an integer number (1813615056).

Almost surely, 2^28405112982 is an apocalyptic number.

28405112982 is an abundant number, since it is smaller than the sum of its proper divisors (29630568810).

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

28405112982 is a wasteful number, since it uses less digits than its factorization.

28405112982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29092.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 28405112982 in words is "twenty-eight billion, four hundred five million, one hundred twelve thousand, nine hundred eighty-two".