26640084888 has 48 divisors (see below), whose sum is σ = 73909999800. Its totient is φ = 8663441280.

The previous prime is 26640084881. The next prime is 26640084901. The reversal of 26640084888 is 88848004662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26640084881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4509258 + ... + 4515161.

Almost surely, 2^26640084888 is an apocalyptic number.

It is an amenable number.

26640084888 is an abundant number, since it is smaller than the sum of its proper divisors (47269914912).

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

26640084888 is a wasteful number, since it uses less digits than its factorization.

26640084888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024472 (or 9024465 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 26640084888 in words is "twenty-six billion, six hundred forty million, eighty-four thousand, eight hundred eighty-eight".