26543313818 has 24 divisors (see below), whose sum is σ = 47445024564. Its totient is φ = 11098248000.

The previous prime is 26543313793. The next prime is 26543313893. The reversal of 26543313818 is 81831334562.

It can be written as a sum of positive squares in 2 ways, for example, as 24478792849 + 2064520969 = 156457^2 + 45437^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3299033 + ... + 3307068.

Almost surely, 2^26543313818 is an apocalyptic number.

26543313818 is a deficient number, since it is larger than the sum of its proper divisors (20901710746).

26543313818 is a wasteful number, since it uses less digits than its factorization.

26543313818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606158 (or 6606151 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The spelling of 26543313818 in words is "twenty-six billion, five hundred forty-three million, three hundred thirteen thousand, eight hundred eighteen".