27073439561 has 8 divisors (see below), whose sum is σ = 31055249664. Its totient is φ = 23120173440.

The previous prime is 27073439551. The next prime is 27073439567. The reversal of 27073439561 is 16593437072.

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

It is not a de Polignac number, because 27073439561 - 2²⁶ = 27006330697 is a prime.

It is a super-2 number, since 2×27073439561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27073439567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7133960 + ... + 7137753.

It is an arithmetic number, because the mean of its divisors is an integer number (3881906208).

Almost surely, 2^27073439561 is an apocalyptic number.

It is an amenable number.

27073439561 is a deficient number, since it is larger than the sum of its proper divisors (3981810103).

27073439561 is a wasteful number, since it uses less digits than its factorization.

27073439561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14271991.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 27073439561 in words is "twenty-seven billion, seventy-three million, four hundred thirty-nine thousand, five hundred sixty-one".