27491532712 has 48 divisors (see below), whose sum is σ = 60021000000. Its totient is φ = 11770571232.

The previous prime is 27491532707. The next prime is 27491532721. The reversal of 27491532712 is 21723519472.

It is a super-3 number, since 3×27491532712³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373539 + ... + 441037.

It is an arithmetic number, because the mean of its divisors is an integer number (1250437500).

Almost surely, 2^27491532712 is an apocalyptic number.

It is an amenable number.

27491532712 is an abundant number, since it is smaller than the sum of its proper divisors (32529467288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27491532712 is a wasteful number, since it uses less digits than its factorization.

27491532712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68558 (or 68547 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The spelling of 27491532712 in words is "twenty-seven billion, four hundred ninety-one million, five hundred thirty-two thousand, seven hundred twelve".