27020462021 has 4 divisors (see below), whose sum is σ = 30880528032. Its totient is φ = 23160396012.

The previous prime is 27020462003. The next prime is 27020462069. The reversal of 27020462021 is 12026402072.

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 27020462021 - 2²⁶ = 26953353157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27020464021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1930032995 + ... + 1930033008.

It is an arithmetic number, because the mean of its divisors is an integer number (7720132008).

Almost surely, 2^27020462021 is an apocalyptic number.

It is an amenable number.

27020462021 is a deficient number, since it is larger than the sum of its proper divisors (3860066011).

27020462021 is an equidigital number, since it uses as much as digits as its factorization.

27020462021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860066010.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 27020462021 its reverse (12026402072), we get a palindrome (39046864093).

The spelling of 27020462021 in words is "twenty-seven billion, twenty million, four hundred sixty-two thousand, twenty-one".