28117045926 has 48 divisors (see below), whose sum is σ = 64517270688. Its totient is φ = 8819193600.

The previous prime is 28117045897. The next prime is 28117045933. The reversal of 28117045926 is 62954071182.

28117045926 is a `hidden beast` number, since 2 + 8 + 1 + 170 + 459 + 26 = 666.

It is a super-3 number, since 3×28117045926³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2905536 + ... + 2915196.

It is an arithmetic number, because the mean of its divisors is an integer number (1344109806).

Almost surely, 2^28117045926 is an apocalyptic number.

28117045926 is an abundant number, since it is smaller than the sum of its proper divisors (36400224762).

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

28117045926 is a wasteful number, since it uses less digits than its factorization.

28117045926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19197 (or 19194 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 28117045926 in words is "twenty-eight billion, one hundred seventeen million, forty-five thousand, nine hundred twenty-six".