27926776505 has 16 divisors (see below), whose sum is σ = 34099004160. Its totient is φ = 21950592768.

The previous prime is 27926776463. The next prime is 27926776511. The reversal of 27926776505 is 50567762972.

It is a cyclic number.

It is not a de Polignac number, because 27926776505 - 2¹⁸ = 27926514361 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527264 + ... + 577806.

It is an arithmetic number, because the mean of its divisors is an integer number (2131187760).

Almost surely, 2^27926776505 is an apocalyptic number.

It is an amenable number.

27926776505 is a deficient number, since it is larger than the sum of its proper divisors (6172227655).

27926776505 is a wasteful number, since it uses less digits than its factorization.

27926776505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52480.

The product of its (nonzero) digits is 11113200, while the sum is 56.

The spelling of 27926776505 in words is "twenty-seven billion, nine hundred twenty-six million, seven hundred seventy-six thousand, five hundred five".