27212136430 has 24 divisors (see below), whose sum is σ = 49720719672. Its totient is φ = 10720711584.

The previous prime is 27212136401. The next prime is 27212136481. The reversal of 27212136430 is 3463121272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27212136392 and 27212136401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4266724 + ... + 4273096.

It is an arithmetic number, because the mean of its divisors is an integer number (2071696653).

Almost surely, 2^27212136430 is an apocalyptic number.

27212136430 is a deficient number, since it is larger than the sum of its proper divisors (22508583242).

27212136430 is an frugal number, since it uses more digits than its factorization.

27212136430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12820 (or 6447 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The spelling of 27212136430 in words is "twenty-seven billion, two hundred twelve million, one hundred thirty-six thousand, four hundred thirty".