27026072091 has 40 divisors (see below), whose sum is σ = 40801693680. Its totient is φ = 17826184512.

The previous prime is 27026072081. The next prime is 27026072107. The reversal of 27026072091 is 19027062072.

27026072091 is a `hidden beast` number, since 27 + 0 + 2 + 607 + 20 + 9 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-27026072091 is a prime.

It is a super-2 number, since 2×27026072091² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27026072081) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9263565 + ... + 9266481.

It is an arithmetic number, because the mean of its divisors is an integer number (1020042342).

Almost surely, 2^27026072091 is an apocalyptic number.

27026072091 is a deficient number, since it is larger than the sum of its proper divisors (13775621589).

27026072091 is a wasteful number, since it uses less digits than its factorization.

27026072091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 27026072091 in words is "twenty-seven billion, twenty-six million, seventy-two thousand, ninety-one".