21079410803712 has 220 divisors, whose sum is σ = 63705663107856. Its totient is φ = 6941811732480.

The previous prime is 21079410803597. The next prime is 21079410803747. The reversal of 21079410803712 is 21730801497012.

21079410803712 is a `hidden beast` number, since 2 + 107 + 94 + 10 + 80 + 371 + 2 = 666.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 5353387 + ... + 8415317.

Almost surely, 2^{21079410803712} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21079410803712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31852831553928).

21079410803712 is an abundant number, since it is smaller than the sum of its proper divisors (42626252304144).

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

21079410803712 is an equidigital number, since it uses as much as digits as its factorization.

21079410803712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062046 (or 3062019 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 21079410803712 in words is "twenty-one trillion, seventy-nine billion, four hundred ten million, eight hundred three thousand, seven hundred twelve".