27884732714621 has 32 divisors (see below), whose sum is σ = 28406472087168. Its totient is φ = 27369067910400.

The previous prime is 27884732714617. The next prime is 27884732714633. The reversal of 27884732714621 is 12641723748872.

It is not a de Polignac number, because 27884732714621 - 2² = 27884732714617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27884732714821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8815911386 + ... + 8815914548.

It is an arithmetic number, because the mean of its divisors is an integer number (887702252724).

Almost surely, 2^{27884732714621} is an apocalyptic number.

It is an amenable number.

27884732714621 is a deficient number, since it is larger than the sum of its proper divisors (521739372547).

27884732714621 is a wasteful number, since it uses less digits than its factorization.

27884732714621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5021.

The product of its digits is 50577408, while the sum is 62.

The spelling of 27884732714621 in words is "twenty-seven trillion, eight hundred eighty-four billion, seven hundred thirty-two million, seven hundred fourteen thousand, six hundred twenty-one".