28047768742 has 16 divisors (see below), whose sum is σ = 48095004672. Its totient is φ = 12017193480.

The previous prime is 28047768719. The next prime is 28047768757. The reversal of 28047768742 is 24786774082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219718 + ... + 323065.

It is an arithmetic number, because the mean of its divisors is an integer number (3005937792).

Almost surely, 2^28047768742 is an apocalyptic number.

28047768742 is a deficient number, since it is larger than the sum of its proper divisors (20047235930).

28047768742 is a wasteful number, since it uses less digits than its factorization.

28047768742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546483.

The product of its (nonzero) digits is 8429568, while the sum is 55.

The spelling of 28047768742 in words is "twenty-eight billion, forty-seven million, seven hundred sixty-eight thousand, seven hundred forty-two".