26128647384 has 128 divisors (see below), whose sum is σ = 75639674880. Its totient is φ = 7367270400.

The previous prime is 26128647361. The next prime is 26128647451. The reversal of 26128647384 is 48374682162.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4572289 + ... + 4577999.

It is an arithmetic number, because the mean of its divisors is an integer number (590934960).

Almost surely, 2^26128647384 is an apocalyptic number.

26128647384 is a gapful number since it is divisible by the number (24) 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 26128647384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37819837440).

26128647384 is an abundant number, since it is smaller than the sum of its proper divisors (49511027496).

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

26128647384 is a wasteful number, since it uses less digits than its factorization.

26128647384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081 (or 6077 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The spelling of 26128647384 in words is "twenty-six billion, one hundred twenty-eight million, six hundred forty-seven thousand, three hundred eighty-four".