26920816722 has 42 divisors (see below), whose sum is σ = 60558234453. Its totient is φ = 8971517232.

The previous prime is 26920816679. The next prime is 26920816753. The reversal of 26920816722 is 22761802962.

26920816722 is a `hidden beast` number, since 269 + 208 + 167 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26886488841 + 34327881 = 163971^2 + 5859^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=116019.

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 20 ways as a sum of consecutive naturals, for example, 6262878 + ... + 6267174.

Almost surely, 2^26920816722 is an apocalyptic number.

26920816722 is an abundant number, since it is smaller than the sum of its proper divisors (33637417731).

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

26920816722 is an frugal number, since it uses more digits than its factorization.

26920816722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614 (or 4302 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 26920816722 in words is "twenty-six billion, nine hundred twenty million, eight hundred sixteen thousand, seven hundred twenty-two".