26244428020 has 24 divisors (see below), whose sum is σ = 55169750664. Its totient is φ = 10487018496.

The previous prime is 26244427991. The next prime is 26244428051. The reversal of 26244428020 is 2082444262.

It can be written as a sum of positive squares in 4 ways, for example, as 8381036304 + 17863391716 = 91548^2 + 133654^2 .

It is a super-2 number, since 2×26244428020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652017 + ... + 691096.

It is an arithmetic number, because the mean of its divisors is an integer number (2298739611).

Almost surely, 2^26244428020 is an apocalyptic number.

26244428020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26244428020 is an abundant number, since it is smaller than the sum of its proper divisors (28925322644).

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

26244428020 is a wasteful number, since it uses less digits than its factorization.

26244428020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344099 (or 1344097 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 34.

The spelling of 26244428020 in words is "twenty-six billion, two hundred forty-four million, four hundred twenty-eight thousand, twenty".