27726364073 has 4 divisors (see below), whose sum is σ = 27728267088. Its totient is φ = 27724461060.

The previous prime is 27726364049. The next prime is 27726364079. The reversal of 27726364073 is 37046362772.

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 27726364073 - 2¹² = 27726359977 is a prime.

It is a super-3 number, since 3×27726364073³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27726364079) 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, 929483 + ... + 958848.

It is an arithmetic number, because the mean of its divisors is an integer number (6932066772).

Almost surely, 2^27726364073 is an apocalyptic number.

It is an amenable number.

27726364073 is a deficient number, since it is larger than the sum of its proper divisors (1903015).

27726364073 is a wasteful number, since it uses less digits than its factorization.

27726364073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903014.

The product of its (nonzero) digits is 1778112, while the sum is 47.

The spelling of 27726364073 in words is "twenty-seven billion, seven hundred twenty-six million, three hundred sixty-four thousand, seventy-three".