27154086091 has 16 divisors (see below), whose sum is σ = 31155176448. Its totient is φ = 23438469600.

The previous prime is 27154086067. The next prime is 27154086119. The reversal of 27154086091 is 19068045172.

It is a cyclic number.

It is not a de Polignac number, because 27154086091 - 2⁵ = 27154086059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27154086031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 733161 + ... + 769306.

It is an arithmetic number, because the mean of its divisors is an integer number (1947198528).

Almost surely, 2^27154086091 is an apocalyptic number.

27154086091 is a deficient number, since it is larger than the sum of its proper divisors (4001090357).

27154086091 is a wasteful number, since it uses less digits than its factorization.

27154086091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502562.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 27154086091 in words is "twenty-seven billion, one hundred fifty-four million, eighty-six thousand, ninety-one".