28807342852 has 24 divisors (see below), whose sum is σ = 50944829600. Its totient is φ = 14251749120.

The previous prime is 28807342769. The next prime is 28807342859. The reversal of 28807342852 is 25824370882.

It is a junction number, because it is equal to n+sod(n) for n = 28807342796 and 28807342805.

It is not an unprimeable number, because it can be changed into a prime (28807342859) 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, 2543899 + ... + 2555197.

Almost surely, 2^28807342852 is an apocalyptic number.

It is an amenable number.

28807342852 is a deficient number, since it is larger than the sum of its proper divisors (22137486748).

28807342852 is a wasteful number, since it uses less digits than its factorization.

28807342852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17971 (or 17969 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 49.

The spelling of 28807342852 in words is "twenty-eight billion, eight hundred seven million, three hundred forty-two thousand, eight hundred fifty-two".