26799691104 has 120 divisors (see below), whose sum is σ = 79515513000. Its totient is φ = 8854078464.

The previous prime is 26799691081. The next prime is 26799691109. The reversal of 26799691104 is 40119699762.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26799691109) 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 19 ways as a sum of consecutive naturals, for example, 247147 + ... + 338645.

It is an arithmetic number, because the mean of its divisors is an integer number (662629275).

Almost surely, 2^26799691104 is an apocalyptic number.

26799691104 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 26799691104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39757756500).

26799691104 is an abundant number, since it is smaller than the sum of its proper divisors (52715821896).

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

26799691104 is a wasteful number, since it uses less digits than its factorization.

26799691104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91634 (or 91617 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 26799691104 in words is "twenty-six billion, seven hundred ninety-nine million, six hundred ninety-one thousand, one hundred four".