26457289818 has 16 divisors (see below), whose sum is σ = 52927892640. Its totient is φ = 8816877776.

The previous prime is 26457289813. The next prime is 26457289823. The reversal of 26457289818 is 81898275462.

It is an interprime number because it is at equal distance from previous prime (26457289813) and next prime (26457289823).

It is not an unprimeable number, because it can be changed into a prime (26457289811) 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, 528780 + ... + 576647.

It is an arithmetic number, because the mean of its divisors is an integer number (3307993290).

Almost surely, 2^26457289818 is an apocalyptic number.

26457289818 is an abundant number, since it is smaller than the sum of its proper divisors (26470602822).

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

26457289818 is a wasteful number, since it uses less digits than its factorization.

26457289818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109421.

The product of its digits is 15482880, while the sum is 60.

The spelling of 26457289818 in words is "twenty-six billion, four hundred fifty-seven million, two hundred eighty-nine thousand, eight hundred eighteen".