28267006956 has 48 divisors (see below), whose sum is σ = 66638933760. Its totient is φ = 9324907200.

The previous prime is 28267006927. The next prime is 28267006987. The reversal of 28267006956 is 65960076282.

It is a junction number, because it is equal to n+sod(n) for n = 28267006899 and 28267006908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4019115 + ... + 4026141.

It is an arithmetic number, because the mean of its divisors is an integer number (1388311120).

Almost surely, 2^28267006956 is an apocalyptic number.

It is an amenable number.

28267006956 is an abundant number, since it is smaller than the sum of its proper divisors (38371926804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28267006956 is a wasteful number, since it uses less digits than its factorization.

28267006956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10454 (or 10452 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 28267006956 in words is "twenty-eight billion, two hundred sixty-seven million, six thousand, nine hundred fifty-six".