27256794917 has 8 divisors (see below), whose sum is σ = 29737039872. Its totient is φ = 24776942400.

The previous prime is 27256794899. The next prime is 27256794923. The reversal of 27256794917 is 71949765272.

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

It is a cyclic number.

It is not a de Polignac number, because 27256794917 - 2⁸ = 27256794661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27256794967) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 57917 + ... + 240557.

It is an arithmetic number, because the mean of its divisors is an integer number (3717129984).

Almost surely, 2^27256794917 is an apocalyptic number.

It is an amenable number.

27256794917 is a deficient number, since it is larger than the sum of its proper divisors (2480244955).

27256794917 is a wasteful number, since it uses less digits than its factorization.

27256794917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196219.

The product of its digits is 13335840, while the sum is 59.

The spelling of 27256794917 in words is "twenty-seven billion, two hundred fifty-six million, seven hundred ninety-four thousand, nine hundred seventeen".