26228717688 has 32 divisors (see below), whose sum is σ = 65576039760. Its totient is φ = 8742339840.

The previous prime is 26228717663. The next prime is 26228717693. The reversal of 26228717688 is 88671782262.

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, 522658 + ... + 570638.

Almost surely, 2^26228717688 is an apocalyptic number.

It is an amenable number.

26228717688 is an abundant number, since it is smaller than the sum of its proper divisors (39347322072).

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

26228717688 is a wasteful number, since it uses less digits than its factorization.

26228717688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70767 (or 70763 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 57.

The spelling of 26228717688 in words is "twenty-six billion, two hundred twenty-eight million, seven hundred seventeen thousand, six hundred eighty-eight".