27223775012 has 12 divisors (see below), whose sum is σ = 54447550080. Its totient is φ = 11667332136.

The previous prime is 27223775003. The next prime is 27223775017. The reversal of 27223775012 is 21057732272.

27223775012 is an admirable number.

It is a super-2 number, since 2×27223775012² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27223775017) 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, 486138812 + ... + 486138867.

It is an arithmetic number, because the mean of its divisors is an integer number (4537295840).

Almost surely, 2^27223775012 is an apocalyptic number.

It is an amenable number.

27223775012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27223775012 is a wasteful number, since it uses less digits than its factorization.

27223775012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972277690 (or 972277688 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The spelling of 27223775012 in words is "twenty-seven billion, two hundred twenty-three million, seven hundred seventy-five thousand, twelve".