21602350741026 has 256 divisors, whose sum is σ = 51012559987200. Its totient is φ = 6076331458560.

The previous prime is 21602350741021. The next prime is 21602350741033. The reversal of 21602350741026 is 62014705320612.

It is not an unprimeable number, because it can be changed into a prime (21602350741021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5231858130 + ... + 5231862258.

It is an arithmetic number, because the mean of its divisors is an integer number (199267812450).

Almost surely, 2^{21602350741026} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21602350741026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25506279993600).

21602350741026 is an abundant number, since it is smaller than the sum of its proper divisors (29410209246174).

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

21602350741026 is a wasteful number, since it uses less digits than its factorization.

21602350741026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 21602350741026 in words is "twenty-one trillion, six hundred two billion, three hundred fifty million, seven hundred forty-one thousand, twenty-six".