26720285491200 has 792 divisors, whose sum is σ = 102810016938672. Its totient is φ = 6105732218880.

The previous prime is 26720285491169. The next prime is 26720285491243. The reversal of 26720285491200 is 219458202762.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 26720285491200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7707031867 + ... + 7707035333.

Almost surely, 2^{26720285491200} is an apocalyptic number.

26720285491200 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 26720285491200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51405008469336).

26720285491200 is an abundant number, since it is smaller than the sum of its proper divisors (76089731447472).

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

26720285491200 is an frugal number, since it uses more digits than its factorization.

26720285491200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536 (or 3484 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 26720285491200 in words is "twenty-six trillion, seven hundred twenty billion, two hundred eighty-five million, four hundred ninety-one thousand, two hundred".