26740639284 has 24 divisors (see below), whose sum is σ = 63722375808. Its totient is φ = 8723896320.

The previous prime is 26740639283. The next prime is 26740639301. The reversal of 26740639284 is 48293604762.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26740639283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23705677 + ... + 23706804.

It is an arithmetic number, because the mean of its divisors is an integer number (2655098992).

Almost surely, 2^26740639284 is an apocalyptic number.

It is an amenable number.

26740639284 is an abundant number, since it is smaller than the sum of its proper divisors (36981736524).

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

26740639284 is a wasteful number, since it uses less digits than its factorization.

26740639284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47412535 (or 47412533 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 26740639284 in words is "twenty-six billion, seven hundred forty million, six hundred thirty-nine thousand, two hundred eighty-four".