26645222543 has 8 divisors (see below), whose sum is σ = 26919155328. Its totient is φ = 26371583064.

The previous prime is 26645222509. The next prime is 26645222633. The reversal of 26645222543 is 34522254662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26645222543 - 2¹⁸ = 26644960399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26645222543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26645225543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111680 + ... + 256442.

It is an arithmetic number, because the mean of its divisors is an integer number (3364894416).

Almost surely, 2^26645222543 is an apocalyptic number.

26645222543 is a deficient number, since it is larger than the sum of its proper divisors (273932785).

26645222543 is a wasteful number, since it uses less digits than its factorization.

26645222543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146653.

The product of its digits is 691200, while the sum is 41.

The spelling of 26645222543 in words is "twenty-six billion, six hundred forty-five million, two hundred twenty-two thousand, five hundred forty-three".