26719456620 has 96 divisors (see below), whose sum is σ = 76055874048. Its totient is φ = 7007311872.

The previous prime is 26719456571. The next prime is 26719456637. The reversal of 26719456620 is 2665491762.

It is a self number, because there is not a number n which added to its sum of digits gives 26719456620.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2595804 + ... + 2606076.

It is an arithmetic number, because the mean of its divisors is an integer number (792248688).

Almost surely, 2^26719456620 is an apocalyptic number.

26719456620 is a gapful number since it is divisible by the number (20) 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 26719456620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38027937024).

26719456620 is an abundant number, since it is smaller than the sum of its proper divisors (49336417428).

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

26719456620 is a wasteful number, since it uses less digits than its factorization.

26719456620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10999 (or 10997 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 26719456620 in words is "twenty-six billion, seven hundred nineteen million, four hundred fifty-six thousand, six hundred twenty".