26828207540 has 24 divisors (see below), whose sum is σ = 56348759040. Its totient is φ = 10729469088.

The previous prime is 26828207491. The next prime is 26828207573. The reversal of 26828207540 is 4570282862.

It is a junction number, because it is equal to n+sod(n) for n = 26828207491 and 26828207500.

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, 11249 + ... + 231911.

It is an arithmetic number, because the mean of its divisors is an integer number (2347864960).

Almost surely, 2^26828207540 is an apocalyptic number.

26828207540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26828207540 is an abundant number, since it is smaller than the sum of its proper divisors (29520551500).

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

26828207540 is a wasteful number, since it uses less digits than its factorization.

26828207540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226751 (or 226749 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 26828207540 in words is "twenty-six billion, eight hundred twenty-eight million, two hundred seven thousand, five hundred forty".