26799206616 has 768 divisors, whose sum is σ = 98793676800. Its totient is φ = 6662476800.

The previous prime is 26799206611. The next prime is 26799206627. The reversal of 26799206616 is 61660299762.

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 (26799206611) 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 191 ways as a sum of consecutive naturals, for example, 260186421 + ... + 260186523.

It is an arithmetic number, because the mean of its divisors is an integer number (128637600).

Almost surely, 2^26799206616 is an apocalyptic number.

26799206616 is a gapful number since it is divisible by the number (26) 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 26799206616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49396838400).

26799206616 is an abundant number, since it is smaller than the sum of its proper divisors (71994470184).

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

26799206616 is a wasteful number, since it uses less digits than its factorization.

26799206616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 26799206616 in words is "twenty-six billion, seven hundred ninety-nine million, two hundred six thousand, six hundred sixteen".