27152353561 has 4 divisors (see below), whose sum is σ = 27332170624. Its totient is φ = 26972536500.

The previous prime is 27152353531. The next prime is 27152353567. The reversal of 27152353561 is 16535325172.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27152353561 - 2⁹ = 27152353049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27152353567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89908305 + ... + 89908606.

It is an arithmetic number, because the mean of its divisors is an integer number (6833042656).

Almost surely, 2^27152353561 is an apocalyptic number.

It is an amenable number.

27152353561 is a deficient number, since it is larger than the sum of its proper divisors (179817063).

27152353561 is a wasteful number, since it uses less digits than its factorization.

27152353561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179817062.

The product of its digits is 189000, while the sum is 40.

The spelling of 27152353561 in words is "twenty-seven billion, one hundred fifty-two million, three hundred fifty-three thousand, five hundred sixty-one".