26344935018 has 16 divisors (see below), whose sum is σ = 58544300160. Its totient is φ = 8781644988.

The previous prime is 26344935007. The next prime is 26344935047. The reversal of 26344935018 is 81053944362.

26344935018 is a `hidden beast` number, since 2 + 634 + 4 + 9 + 3 + 5 + 0 + 1 + 8 = 666.

It is a super-2 number, since 2×26344935018² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 243934530 + ... + 243934637.

It is an arithmetic number, because the mean of its divisors is an integer number (3659018760).

Almost surely, 2^26344935018 is an apocalyptic number.

26344935018 is an abundant number, since it is smaller than the sum of its proper divisors (32199365142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26344935018 is a wasteful number, since it uses less digits than its factorization.

26344935018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487869178 (or 487869172 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 26344935018 in words is "twenty-six billion, three hundred forty-four million, nine hundred thirty-five thousand, eighteen".