28455559136 has 24 divisors (see below), whose sum is σ = 56940277464. Its totient is φ = 13994536320.

The previous prime is 28455559081. The next prime is 28455559193. The reversal of 28455559136 is 63195555482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7286870 + ... + 7290773.

It is an arithmetic number, because the mean of its divisors is an integer number (2372511561).

Almost surely, 2^28455559136 is an apocalyptic number.

It is an amenable number.

28455559136 is an abundant number, since it is smaller than the sum of its proper divisors (28484718328).

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

28455559136 is a wasteful number, since it uses less digits than its factorization.

28455559136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14577714 (or 14577706 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 53.

The spelling of 28455559136 in words is "twenty-eight billion, four hundred fifty-five million, five hundred fifty-nine thousand, one hundred thirty-six".