26572129128 has 96 divisors (see below), whose sum is σ = 76028440800. Its totient is φ = 8360786304.

The previous prime is 26572129121. The next prime is 26572129141. The reversal of 26572129128 is 82192127562.

It is not an unprimeable number, because it can be changed into a prime (26572129121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343875 + ... + 413997.

It is an arithmetic number, because the mean of its divisors is an integer number (791962925).

Almost surely, 2^26572129128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26572129128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38014220400).

26572129128 is an abundant number, since it is smaller than the sum of its proper divisors (49456311672).

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

26572129128 is a wasteful number, since it uses less digits than its factorization.

26572129128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70431 (or 70424 counting only the distinct ones).

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

It can be divided in two parts, 265721 and 29128, that added together give a square (294849 = 543²).

The spelling of 26572129128 in words is "twenty-six billion, five hundred seventy-two million, one hundred twenty-nine thousand, one hundred twenty-eight".