26905681300 has 18 divisors (see below), whose sum is σ = 58385328638. Its totient is φ = 10762272480.

The previous prime is 26905681273. The next prime is 26905681303. The reversal of 26905681300 is 318650962.

It can be written as a sum of positive squares in 3 ways, for example, as 9056186896 + 17849494404 = 95164^2 + 133602^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26905681303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134528307 + ... + 134528506.

Almost surely, 2^26905681300 is an apocalyptic number.

26905681300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26905681300 is an abundant number, since it is smaller than the sum of its proper divisors (31479647338).

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

26905681300 is a wasteful number, since it uses less digits than its factorization.

26905681300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269056827 (or 269056820 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 26905681300 in words is "twenty-six billion, nine hundred five million, six hundred eighty-one thousand, three hundred".