26004064020 has 72 divisors (see below), whose sum is σ = 80032364832. Its totient is φ = 6304013760.

The previous prime is 26004064013. The next prime is 26004064039. The reversal of 26004064020 is 2046040062.

It is a super-2 number, since 2×26004064020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1783654 + ... + 1798173.

Almost surely, 2^26004064020 is an apocalyptic number.

26004064020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26004064020 is an abundant number, since it is smaller than the sum of its proper divisors (54028300812).

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

26004064020 is a wasteful number, since it uses less digits than its factorization.

26004064020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581861 (or 3581848 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The spelling of 26004064020 in words is "twenty-six billion, four million, sixty-four thousand, twenty".