28269681142 has 16 divisors (see below), whose sum is σ = 43131286800. Its totient is φ = 13892675040.

The previous prime is 28269681127. The next prime is 28269681149. The reversal of 28269681142 is 24118696282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28269681149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715792 + ... + 754252.

It is an arithmetic number, because the mean of its divisors is an integer number (2695705425).

Almost surely, 2^28269681142 is an apocalyptic number.

28269681142 is a deficient number, since it is larger than the sum of its proper divisors (14861605658).

28269681142 is a wasteful number, since it uses less digits than its factorization.

28269681142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44751.

The product of its digits is 663552, while the sum is 49.

The spelling of 28269681142 in words is "twenty-eight billion, two hundred sixty-nine million, six hundred eighty-one thousand, one hundred forty-two".