27274346887 has 16 divisors (see below), whose sum is σ = 28964355840. Its totient is φ = 25629875392.

The previous prime is 27274346867. The next prime is 27274346903. The reversal of 27274346887 is 78864347272.

It is a cyclic number.

It is not a de Polignac number, because 27274346887 - 2³¹ = 25126863239 is a prime.

It is a super-2 number, since 2×27274346887² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27274346807) 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 15 ways as a sum of consecutive naturals, for example, 301803 + ... + 381619.

It is an arithmetic number, because the mean of its divisors is an integer number (1810272240).

Almost surely, 2^27274346887 is an apocalyptic number.

27274346887 is a deficient number, since it is larger than the sum of its proper divisors (1690008953).

27274346887 is a wasteful number, since it uses less digits than its factorization.

27274346887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80102.

The product of its digits is 25288704, while the sum is 58.

The spelling of 27274346887 in words is "twenty-seven billion, two hundred seventy-four million, three hundred forty-six thousand, eight hundred eighty-seven".