26844090618 has 32 divisors (see below), whose sum is σ = 57227860800. Its totient is φ = 8365149440.

The previous prime is 26844090571. The next prime is 26844090619. The reversal of 26844090618 is 81609044862.

It is a super-2 number, since 2×26844090618² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26844090619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867948 + ... + 898343.

It is an arithmetic number, because the mean of its divisors is an integer number (1788370650).

Almost surely, 2^26844090618 is an apocalyptic number.

26844090618 is an abundant number, since it is smaller than the sum of its proper divisors (30383770182).

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

26844090618 is a wasteful number, since it uses less digits than its factorization.

26844090618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766462.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 26844090618 in words is "twenty-six billion, eight hundred forty-four million, ninety thousand, six hundred eighteen".