27572212091 has 2 divisors, whose sum is σ = 27572212092. Its totient is φ = 27572212090.

The previous prime is 27572212043. The next prime is 27572212133. The reversal of 27572212091 is 19021227572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27572212091 - 2⁶ = 27572212027 is a prime.

It is not a weakly prime, because it can be changed into another prime (27572212391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13786106045 + 13786106046.

It is an arithmetic number, because the mean of its divisors is an integer number (13786106046).

Almost surely, 2^27572212091 is an apocalyptic number.

27572212091 is a deficient number, since it is larger than the sum of its proper divisors (1).

27572212091 is an equidigital number, since it uses as much as digits as its factorization.

27572212091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 27572212091 in words is "twenty-seven billion, five hundred seventy-two million, two hundred twelve thousand, ninety-one".