28042075986 has 32 divisors (see below), whose sum is σ = 57441804288. Its totient is φ = 9121487760.

The previous prime is 28042075981. The next prime is 28042075987. The reversal of 28042075986 is 68957024082.

It is a super-3 number, since 3×28042075986³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28042075981) by changing a digit.

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, 230451 + ... + 330441.

It is an arithmetic number, because the mean of its divisors is an integer number (1795056384).

Almost surely, 2^28042075986 is an apocalyptic number.

28042075986 is an abundant number, since it is smaller than the sum of its proper divisors (29399728302).

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

28042075986 is a wasteful number, since it uses less digits than its factorization.

28042075986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101126.

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 28042075986 in words is "twenty-eight billion, forty-two million, seventy-five thousand, nine hundred eighty-six".