26879999982 has 64 divisors (see below), whose sum is σ = 60269702400. Its totient is φ = 7920391680.

The previous prime is 26879999981. The next prime is 26879999989. The reversal of 26879999982 is 28999997862.

It is a junction number, because it is equal to n+sod(n) for n = 26879999898 and 26879999907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26879999981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6369069 + ... + 6373287.

It is an arithmetic number, because the mean of its divisors is an integer number (941714100).

Almost surely, 2^26879999982 is an apocalyptic number.

26879999982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26879999982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30134851200).

26879999982 is an abundant number, since it is smaller than the sum of its proper divisors (33389702418).

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

26879999982 is a wasteful number, since it uses less digits than its factorization.

26879999982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6881.

The product of its digits is 634894848, while the sum is 78.

The spelling of 26879999982 in words is "twenty-six billion, eight hundred seventy-nine million, nine hundred ninety-nine thousand, nine hundred eighty-two".