28055834436 has 24 divisors (see below), whose sum is σ = 74815558720. Its totient is φ = 8015952672.

The previous prime is 28055834431. The next prime is 28055834441. The reversal of 28055834436 is 63443855082.

It is an interprime number because it is at equal distance from previous prime (28055834431) and next prime (28055834441).

It is not an unprimeable number, because it can be changed into a prime (28055834431) 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, 166998931 + ... + 166999098.

Almost surely, 2^28055834436 is an apocalyptic number.

It is an amenable number.

28055834436 is an abundant number, since it is smaller than the sum of its proper divisors (46759724284).

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

28055834436 is a wasteful number, since it uses less digits than its factorization.

28055834436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333998043 (or 333998041 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 28055834436 in words is "twenty-eight billion, fifty-five million, eight hundred thirty-four thousand, four hundred thirty-six".