28601782276 has 24 divisors (see below), whose sum is σ = 50252166720. Its totient is φ = 14244122592.

The previous prime is 28601782267. The next prime is 28601782331. The reversal of 28601782276 is 67228710682.

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, 1159665 + ... + 1184071.

It is an arithmetic number, because the mean of its divisors is an integer number (2093840280).

Almost surely, 2^28601782276 is an apocalyptic number.

It is an amenable number.

28601782276 is a deficient number, since it is larger than the sum of its proper divisors (21650384444).

28601782276 is a wasteful number, since it uses less digits than its factorization.

28601782276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25563 (or 25561 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 28601782276 in words is "twenty-eight billion, six hundred one million, seven hundred eighty-two thousand, two hundred seventy-six".