27621623161 has 8 divisors (see below), whose sum is σ = 30138451200. Its totient is φ = 25105757040.

The previous prime is 27621623143. The next prime is 27621623173. The reversal of 27621623161 is 16132612672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27621623161 - 2⁹ = 27621622649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27621623161.

It is not an unprimeable number, because it can be changed into a prime (27621623101) 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 7 ways as a sum of consecutive naturals, for example, 179766 + ... + 295903.

It is an arithmetic number, because the mean of its divisors is an integer number (3767306400).

Almost surely, 2^27621623161 is an apocalyptic number.

It is an amenable number.

27621623161 is a deficient number, since it is larger than the sum of its proper divisors (2516828039).

27621623161 is a wasteful number, since it uses less digits than its factorization.

27621623161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480959.

The product of its digits is 36288, while the sum is 37.

The spelling of 27621623161 in words is "twenty-seven billion, six hundred twenty-one million, six hundred twenty-three thousand, one hundred sixty-one".