27312124461 has 4 divisors (see below), whose sum is σ = 36416165952. Its totient is φ = 18208082972.

The previous prime is 27312124453. The next prime is 27312124493. The reversal of 27312124461 is 16442121372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27312124461 - 2³ = 27312124453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27312120461) 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, 4552020741 + ... + 4552020746.

It is an arithmetic number, because the mean of its divisors is an integer number (9104041488).

Almost surely, 2^27312124461 is an apocalyptic number.

It is an amenable number.

27312124461 is a deficient number, since it is larger than the sum of its proper divisors (9104041491).

27312124461 is an equidigital number, since it uses as much as digits as its factorization.

27312124461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9104041490.

The product of its digits is 16128, while the sum is 33.

The spelling of 27312124461 in words is "twenty-seven billion, three hundred twelve million, one hundred twenty-four thousand, four hundred sixty-one".