26871870928 has 80 divisors (see below), whose sum is σ = 60170077440. Its totient is φ = 11387520000.

The previous prime is 26871870869. The next prime is 26871870929. The reversal of 26871870928 is 82907817862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26871870929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14919628 + ... + 14921428.

It is an arithmetic number, because the mean of its divisors is an integer number (752125968).

Almost surely, 2^26871870928 is an apocalyptic number.

26871870928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26871870928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30085038720).

26871870928 is an abundant number, since it is smaller than the sum of its proper divisors (33298206512).

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

26871870928 is a wasteful number, since it uses less digits than its factorization.

26871870928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236 (or 3230 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 58.

The spelling of 26871870928 in words is "twenty-six billion, eight hundred seventy-one million, eight hundred seventy thousand, nine hundred twenty-eight".