26857732850 has 24 divisors (see below), whose sum is σ = 53798106180. Its totient is φ = 9916701120.

The previous prime is 26857732807. The next prime is 26857732919. The reversal of 26857732850 is 5823775862.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5317180561 + 21540552289 = 72919^2 + 146767^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26857732792 and 26857732801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20659145 + ... + 20660444.

Almost surely, 2^26857732850 is an apocalyptic number.

26857732850 is an abundant number, since it is smaller than the sum of its proper divisors (26940373330).

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

26857732850 is a wasteful number, since it uses less digits than its factorization.

26857732850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41319614 (or 41319609 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 26857732850 in words is "twenty-six billion, eight hundred fifty-seven million, seven hundred thirty-two thousand, eight hundred fifty".