28129741426 has 8 divisors (see below), whose sum is σ = 42196155120. Its totient is φ = 14064356388.

The previous prime is 28129741417. The next prime is 28129741447. The reversal of 28129741426 is 62414792182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 184716 + ... + 300631.

It is an arithmetic number, because the mean of its divisors is an integer number (5274519390).

Almost surely, 2^28129741426 is an apocalyptic number.

28129741426 is a deficient number, since it is larger than the sum of its proper divisors (14066413694).

28129741426 is a wasteful number, since it uses less digits than its factorization.

28129741426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514328.

The product of its digits is 387072, while the sum is 46.

The spelling of 28129741426 in words is "twenty-eight billion, one hundred twenty-nine million, seven hundred forty-one thousand, four hundred twenty-six".