27256392427 has 16 divisors (see below), whose sum is σ = 30252677760. Its totient is φ = 24346915200.

The previous prime is 27256392391. The next prime is 27256392431. The reversal of 27256392427 is 72429365272.

It is a cyclic number.

It is not a de Polignac number, because 27256392427 - 2¹¹ = 27256390379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27256392467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1529923 + ... + 1547635.

It is an arithmetic number, because the mean of its divisors is an integer number (1890792360).

Almost surely, 2^27256392427 is an apocalyptic number.

27256392427 is a deficient number, since it is larger than the sum of its proper divisors (2996285333).

27256392427 is a wasteful number, since it uses less digits than its factorization.

27256392427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20154.

The product of its digits is 2540160, while the sum is 49.

The spelling of 27256392427 in words is "twenty-seven billion, two hundred fifty-six million, three hundred ninety-two thousand, four hundred twenty-seven".