27629145969 has 16 divisors (see below), whose sum is σ = 37968915264. Its totient is φ = 17859916800.

The previous prime is 27629145961. The next prime is 27629145979. The reversal of 27629145969 is 96954192672.

It is not a de Polignac number, because 27629145969 - 2³ = 27629145961 is a prime.

It is a super-2 number, since 2×27629145969² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27629145961) 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, 668992 + ... + 709089.

It is an arithmetic number, because the mean of its divisors is an integer number (2373057204).

Almost surely, 2^27629145969 is an apocalyptic number.

It is an amenable number.

27629145969 is a deficient number, since it is larger than the sum of its proper divisors (10339769295).

27629145969 is a wasteful number, since it uses less digits than its factorization.

27629145969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378288.

The product of its digits is 14696640, while the sum is 60.

The spelling of 27629145969 in words is "twenty-seven billion, six hundred twenty-nine million, one hundred forty-five thousand, nine hundred sixty-nine".