27591169413 has 16 divisors (see below), whose sum is σ = 38096308736. Its totient is φ = 17743864320.

The previous prime is 27591169381. The next prime is 27591169423. The reversal of 27591169413 is 31496119572.

It is not a de Polignac number, because 27591169413 - 2⁵ = 27591169381 is a prime.

It is a super-2 number, since 2×27591169413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27591169423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444820 + ... + 503037.

It is an arithmetic number, because the mean of its divisors is an integer number (2381019296).

Almost surely, 2^27591169413 is an apocalyptic number.

It is an amenable number.

27591169413 is a deficient number, since it is larger than the sum of its proper divisors (10505139323).

27591169413 is a wasteful number, since it uses less digits than its factorization.

27591169413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948204.

The product of its digits is 408240, while the sum is 48.

The spelling of 27591169413 in words is "twenty-seven billion, five hundred ninety-one million, one hundred sixty-nine thousand, four hundred thirteen".