27672535491 has 32 divisors (see below), whose sum is σ = 39951470592. Its totient is φ = 16992988320.

The previous prime is 27672535477. The next prime is 27672535507. The reversal of 27672535491 is 19453527672.

It is not a de Polignac number, because 27672535491 - 2¹³ = 27672527299 is a prime.

It is a super-2 number, since 2×27672535491² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27672535421) 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 31 ways as a sum of consecutive naturals, for example, 144976 + ... + 276338.

It is an arithmetic number, because the mean of its divisors is an integer number (1248483456).

Almost surely, 2^27672535491 is an apocalyptic number.

27672535491 is a deficient number, since it is larger than the sum of its proper divisors (12278935101).

27672535491 is a wasteful number, since it uses less digits than its factorization.

27672535491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131503.

The product of its digits is 3175200, while the sum is 51.

The spelling of 27672535491 in words is "twenty-seven billion, six hundred seventy-two million, five hundred thirty-five thousand, four hundred ninety-one".