28675251784 has 32 divisors (see below), whose sum is σ = 54421683840. Its totient is φ = 14163448000.

The previous prime is 28675251719. The next prime is 28675251793. The reversal of 28675251784 is 48715257682.

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, 317889 + ... + 397999.

It is an arithmetic number, because the mean of its divisors is an integer number (1700677620).

Almost surely, 2^28675251784 is an apocalyptic number.

It is an amenable number.

28675251784 is a deficient number, since it is larger than the sum of its proper divisors (25746432056).

28675251784 is a wasteful number, since it uses less digits than its factorization.

28675251784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80661 (or 80657 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 55.

The spelling of 28675251784 in words is "twenty-eight billion, six hundred seventy-five million, two hundred fifty-one thousand, seven hundred eighty-four".