28055866412 has 24 divisors (see below), whose sum is σ = 59064983040. Its totient is φ = 11391103440.

The previous prime is 28055866361. The next prime is 28055866429. The reversal of 28055866412 is 21466855082.

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, 26367764 + ... + 26368827.

It is an arithmetic number, because the mean of its divisors is an integer number (2461040960).

Almost surely, 2^28055866412 is an apocalyptic number.

It is an amenable number.

28055866412 is an abundant number, since it is smaller than the sum of its proper divisors (31009116628).

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

28055866412 is a wasteful number, since it uses less digits than its factorization.

28055866412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52736621 (or 52736619 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 28055866412 in words is "twenty-eight billion, fifty-five million, eight hundred sixty-six thousand, four hundred twelve".