27726868810 has 8 divisors (see below), whose sum is σ = 49908363876. Its totient is φ = 11090747520.

The previous prime is 27726868789. The next prime is 27726868823. The reversal of 27726868810 is 1886862772.

It can be written as a sum of positive squares in 2 ways, for example, as 26847805609 + 879063201 = 163853^2 + 29649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×27726868810² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1386343431 + ... + 1386343450.

Almost surely, 2^27726868810 is an apocalyptic number.

27726868810 is a deficient number, since it is larger than the sum of its proper divisors (22181495066).

27726868810 is a wasteful number, since it uses less digits than its factorization.

27726868810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772686888.

The product of its (nonzero) digits is 3612672, while the sum is 55.

The spelling of 27726868810 in words is "twenty-seven billion, seven hundred twenty-six million, eight hundred sixty-eight thousand, eight hundred ten".