27159986469 has 32 divisors (see below), whose sum is σ = 45346314240. Its totient is φ = 14047444800.

The previous prime is 27159986461. The next prime is 27159986473. The reversal of 27159986469 is 96468995172.

It is not a de Polignac number, because 27159986469 - 2³ = 27159986461 is a prime.

It is a super-2 number, since 2×27159986469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27159986461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203817 + ... + 309614.

It is an arithmetic number, because the mean of its divisors is an integer number (1417072320).

Almost surely, 2^27159986469 is an apocalyptic number.

It is an amenable number.

27159986469 is a deficient number, since it is larger than the sum of its proper divisors (18186327771).

27159986469 is a wasteful number, since it uses less digits than its factorization.

27159986469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513681.

The product of its digits is 58786560, while the sum is 66.

The spelling of 27159986469 in words is "twenty-seven billion, one hundred fifty-nine million, nine hundred eighty-six thousand, four hundred sixty-nine".