26645222541 has 8 divisors (see below), whose sum is σ = 40602243904. Its totient is φ = 15225841440.

The previous prime is 26645222509. The next prime is 26645222633. The reversal of 26645222541 is 14522254662.

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

It is not a de Polignac number, because 26645222541 - 2⁵ = 26645222509 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 26645222541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26645222141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634410040 + ... + 634410081.

It is an arithmetic number, because the mean of its divisors is an integer number (5075280488).

Almost surely, 2^26645222541 is an apocalyptic number.

26645222541 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26645222541 is a deficient number, since it is larger than the sum of its proper divisors (13957021363).

26645222541 is a wasteful number, since it uses less digits than its factorization.

26645222541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268820131.

The product of its digits is 230400, while the sum is 39.

The spelling of 26645222541 in words is "twenty-six billion, six hundred forty-five million, two hundred twenty-two thousand, five hundred forty-one".