28080055238 has 16 divisors (see below), whose sum is σ = 42302660400. Its totient is φ = 13979257056.

The previous prime is 28080055229. The next prime is 28080055247. The reversal of 28080055238 is 83255008082.

It is an interprime number because it is at equal distance from previous prime (28080055229) and next prime (28080055247).

It is a junction number, because it is equal to n+sod(n) for n = 28080055195 and 28080055204.

It is a congruent number.

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, 633113 + ... + 676011.

It is an arithmetic number, because the mean of its divisors is an integer number (2643916275).

Almost surely, 2^28080055238 is an apocalyptic number.

28080055238 is a deficient number, since it is larger than the sum of its proper divisors (14222605162).

28080055238 is a wasteful number, since it uses less digits than its factorization.

28080055238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44311.

The product of its (nonzero) digits is 153600, while the sum is 41.

The spelling of 28080055238 in words is "twenty-eight billion, eighty million, fifty-five thousand, two hundred thirty-eight".