26820437148 has 60 divisors (see below), whose sum is σ = 70136478720. Its totient is φ = 8937269568.

The previous prime is 26820437131. The next prime is 26820437173. The reversal of 26820437148 is 84173402862.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1152613 + ... + 1175651.

It is an arithmetic number, because the mean of its divisors is an integer number (1168941312).

Almost surely, 2^26820437148 is an apocalyptic number.

It is an amenable number.

26820437148 is an abundant number, since it is smaller than the sum of its proper divisors (43316041572).

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

26820437148 is a wasteful number, since it uses less digits than its factorization.

26820437148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26648 (or 26637 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 26820437148 in words is "twenty-six billion, eight hundred twenty million, four hundred thirty-seven thousand, one hundred forty-eight".