27720005097 has 16 divisors (see below), whose sum is σ = 37535643648. Its totient is φ = 18192950160.

The previous prime is 27720005069. The next prime is 27720005123. The reversal of 27720005097 is 79050002772.

It is not a de Polignac number, because 27720005097 - 2¹¹ = 27720003049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27720045097) 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, 50208 + ... + 240750.

It is an arithmetic number, because the mean of its divisors is an integer number (2345977728).

Almost surely, 2^27720005097 is an apocalyptic number.

It is an amenable number.

27720005097 is a deficient number, since it is larger than the sum of its proper divisors (9815638551).

27720005097 is a wasteful number, since it uses less digits than its factorization.

27720005097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191300.

The product of its (nonzero) digits is 61740, while the sum is 39.

The spelling of 27720005097 in words is "twenty-seven billion, seven hundred twenty million, five thousand, ninety-seven".