27213351801 has 4 divisors (see below), whose sum is σ = 36284469072. Its totient is φ = 18142234532.

The previous prime is 27213351791. The next prime is 27213351881. The reversal of 27213351801 is 10815331272.

It is a happy number.

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 27213351801 - 2⁵ = 27213351769 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27213351881) 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, 4535558631 + ... + 4535558636.

It is an arithmetic number, because the mean of its divisors is an integer number (9071117268).

Almost surely, 2^27213351801 is an apocalyptic number.

It is an amenable number.

27213351801 is a deficient number, since it is larger than the sum of its proper divisors (9071117271).

27213351801 is an equidigital number, since it uses as much as digits as its factorization.

27213351801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9071117270.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 27213351801 in words is "twenty-seven billion, two hundred thirteen million, three hundred fifty-one thousand, eight hundred one".