26421603310443 has 16 divisors (see below), whose sum is σ = 38442048391296. Its totient is φ = 16008665667840.

The previous prime is 26421603310441. The next prime is 26421603310447. The reversal of 26421603310443 is 34401330612462.

It is not a de Polignac number, because 26421603310443 - 2¹ = 26421603310441 is a prime.

It is a super-2 number, since 2×26421603310443² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26421603310441) 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, 110560021 + ... + 110798742.

It is an arithmetic number, because the mean of its divisors is an integer number (2402628024456).

Almost surely, 2^{26421603310443} is an apocalyptic number.

26421603310443 is a deficient number, since it is larger than the sum of its proper divisors (12020445080853).

26421603310443 is a wasteful number, since it uses less digits than its factorization.

26421603310443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221362394.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 26421603310443 in words is "twenty-six trillion, four hundred twenty-one billion, six hundred three million, three hundred ten thousand, four hundred forty-three".