28047036028 has 24 divisors (see below), whose sum is σ = 54451877760. Its totient is φ = 12532572720.

The previous prime is 28047036023. The next prime is 28047036049. The reversal of 28047036028 is 82063074082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28047036023) 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, 5399376 + ... + 5404567.

It is an arithmetic number, because the mean of its divisors is an integer number (2268828240).

Almost surely, 2^28047036028 is an apocalyptic number.

It is an amenable number.

28047036028 is a deficient number, since it is larger than the sum of its proper divisors (26404841732).

28047036028 is a wasteful number, since it uses less digits than its factorization.

28047036028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10804017 (or 10804015 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 28047036028 in words is "twenty-eight billion, forty-seven million, thirty-six thousand, twenty-eight".