26218418964 has 24 divisors (see below), whose sum is σ = 61397171808. Its totient is φ = 8707921440.

The previous prime is 26218418923. The next prime is 26218418969. The reversal of 26218418964 is 46981481262.

It is a super-3 number, since 3×26218418964³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26218418969) 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, 3940482 + ... + 3947129.

It is an arithmetic number, because the mean of its divisors is an integer number (2558215492).

Almost surely, 2^26218418964 is an apocalyptic number.

It is an amenable number.

26218418964 is an abundant number, since it is smaller than the sum of its proper divisors (35178752844).

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

26218418964 is a wasteful number, since it uses less digits than its factorization.

26218418964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7887895 (or 7887893 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The spelling of 26218418964 in words is "twenty-six billion, two hundred eighteen million, four hundred eighteen thousand, nine hundred sixty-four".