27153643379 has 4 divisors (see below), whose sum is σ = 27171832176. Its totient is φ = 27135454584.

The previous prime is 27153643373. The next prime is 27153643409. The reversal of 27153643379 is 97334635172.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27153643379 - 2³² = 22858676083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27153643373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9092159 + ... + 9095144.

It is an arithmetic number, because the mean of its divisors is an integer number (6792958044).

Almost surely, 2^27153643379 is an apocalyptic number.

27153643379 is a deficient number, since it is larger than the sum of its proper divisors (18188797).

27153643379 is a wasteful number, since it uses less digits than its factorization.

27153643379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18188796.

The product of its digits is 2857680, while the sum is 50.

The spelling of 27153643379 in words is "twenty-seven billion, one hundred fifty-three million, six hundred forty-three thousand, three hundred seventy-nine".