26428803420 has 24 divisors (see below), whose sum is σ = 74000649744. Its totient is φ = 7047680896.

The previous prime is 26428803389. The next prime is 26428803431. The reversal of 26428803420 is 2430882462.

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 7 ways as a sum of consecutive naturals, for example, 220239969 + ... + 220240088.

It is an arithmetic number, because the mean of its divisors is an integer number (3083360406).

Almost surely, 2^26428803420 is an apocalyptic number.

26428803420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26428803420 is an abundant number, since it is smaller than the sum of its proper divisors (47571846324).

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

26428803420 is a wasteful number, since it uses less digits than its factorization.

26428803420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440480069 (or 440480067 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The spelling of 26428803420 in words is "twenty-six billion, four hundred twenty-eight million, eight hundred three thousand, four hundred twenty".