26263110445221 has 16 divisors (see below), whose sum is σ = 38273985681344. Its totient is φ = 15920691519744.

The previous prime is 26263110445217. The next prime is 26263110445241. The reversal of 26263110445221 is 12254401136262.

It is not a de Polignac number, because 26263110445221 - 2² = 26263110445217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 26263110445221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26263110445211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5025468196 + ... + 5025473421.

It is an arithmetic number, because the mean of its divisors is an integer number (2392124105084).

Almost surely, 2^{26263110445221} is an apocalyptic number.

It is an amenable number.

26263110445221 is a deficient number, since it is larger than the sum of its proper divisors (12010875236123).

26263110445221 is a wasteful number, since it uses less digits than its factorization.

26263110445221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050941700.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 26263110445221 in words is "twenty-six trillion, two hundred sixty-three billion, one hundred ten million, four hundred forty-five thousand, two hundred twenty-one".