26868458020 has 12 divisors (see below), whose sum is σ = 56423761884. Its totient is φ = 10747383200.

The previous prime is 26868458009. The next prime is 26868458039. The reversal of 26868458020 is 2085486862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4634069476 + 22234388544 = 68074^2 + 149112^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671711431 + ... + 671711470.

It is an arithmetic number, because the mean of its divisors is an integer number (4701980157).

Almost surely, 2^26868458020 is an apocalyptic number.

26868458020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26868458020 is an abundant number, since it is smaller than the sum of its proper divisors (29555303864).

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

26868458020 is a wasteful number, since it uses less digits than its factorization.

26868458020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343422910 (or 1343422908 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 26868458020 in words is "twenty-six billion, eight hundred sixty-eight million, four hundred fifty-eight thousand, twenty".