27222945613 has 4 divisors (see below), whose sum is σ = 28406551968. Its totient is φ = 26039339260.

The previous prime is 27222945593. The next prime is 27222945641. The reversal of 27222945613 is 31654922272.

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 a de Polignac number, because none of the positive numbers 2^k-27222945613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27222945613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27222945643) 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, 591803143 + ... + 591803188.

It is an arithmetic number, because the mean of its divisors is an integer number (7101637992).

Almost surely, 2^27222945613 is an apocalyptic number.

27222945613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

27222945613 is a deficient number, since it is larger than the sum of its proper divisors (1183606355).

27222945613 is a wasteful number, since it uses less digits than its factorization.

27222945613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183606354.

The product of its digits is 362880, while the sum is 43.

The spelling of 27222945613 in words is "twenty-seven billion, two hundred twenty-two million, nine hundred forty-five thousand, six hundred thirteen".