26812948520 has 32 divisors (see below), whose sum is σ = 60333853320. Its totient is φ = 10724340480.

The previous prime is 26812948511. The next prime is 26812948537. The reversal of 26812948520 is 2584921862.

It can be written as a sum of positive squares in 4 ways, for example, as 22676143396 + 4136805124 = 150586^2 + 64318^2 .

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, 868550 + ... + 898890.

Almost surely, 2^26812948520 is an apocalyptic number.

26812948520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26812948520 is an abundant number, since it is smaller than the sum of its proper divisors (33520904800).

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

26812948520 is a wasteful number, since it uses less digits than its factorization.

26812948520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52445 (or 52441 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 26812948520 in words is "twenty-six billion, eight hundred twelve million, nine hundred forty-eight thousand, five hundred twenty".