27123733641 has 16 divisors (see below), whose sum is σ = 38376990720. Its totient is φ = 17003133840.

The previous prime is 27123733591. The next prime is 27123733649. The reversal of 27123733641 is 14633732172.

It is not a de Polignac number, because 27123733641 - 2³³ = 18533799049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27123733641.

It is not an unprimeable number, because it can be changed into a prime (27123733649) 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, 3327265 + ... + 3335406.

It is an arithmetic number, because the mean of its divisors is an integer number (2398561920).

Almost surely, 2^27123733641 is an apocalyptic number.

It is an amenable number.

27123733641 is a deficient number, since it is larger than the sum of its proper divisors (11253257079).

27123733641 is a wasteful number, since it uses less digits than its factorization.

27123733641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662756.

The product of its digits is 127008, while the sum is 39.

The spelling of 27123733641 in words is "twenty-seven billion, one hundred twenty-three million, seven hundred thirty-three thousand, six hundred forty-one".