28485794142 has 48 divisors (see below), whose sum is σ = 67720974048. Its totient is φ = 8599481280.

The previous prime is 28485794119. The next prime is 28485794143. The reversal of 28485794142 is 24149758482.

28485794142 is a `hidden beast` number, since 2 + 84 + 85 + 79 + 414 + 2 = 666.

It is a super-2 number, since 2×28485794142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485794143) 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 23 ways as a sum of consecutive naturals, for example, 1136034 + ... + 1160837.

It is an arithmetic number, because the mean of its divisors is an integer number (1410853626).

Almost surely, 2^28485794142 is an apocalyptic number.

28485794142 is an abundant number, since it is smaller than the sum of its proper divisors (39235179906).

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

28485794142 is a wasteful number, since it uses less digits than its factorization.

28485794142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296945 (or 2296942 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

It can be divided in two parts, 2848579 and 4142, that added together give a square (2852721 = 1689²).

The spelling of 28485794142 in words is "twenty-eight billion, four hundred eighty-five million, seven hundred ninety-four thousand, one hundred forty-two".