26771613816 has 32 divisors (see below), whose sum is σ = 67195699200. Its totient is φ = 8888316000.

The previous prime is 26771613809. The next prime is 26771613839. The reversal of 26771613816 is 61831617762.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216056 + ... + 2228103.

It is an arithmetic number, because the mean of its divisors is an integer number (2099865600).

Almost surely, 2^26771613816 is an apocalyptic number.

It is an amenable number.

26771613816 is an abundant number, since it is smaller than the sum of its proper divisors (40424085384).

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

26771613816 is a wasteful number, since it uses less digits than its factorization.

26771613816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444419 (or 4444415 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The spelling of 26771613816 in words is "twenty-six billion, seven hundred seventy-one million, six hundred thirteen thousand, eight hundred sixteen".