27223367743661 has 32 divisors (see below), whose sum is σ = 28620703641600. Its totient is φ = 25844528286720.

The previous prime is 27223367743643. The next prime is 27223367743673. The reversal of 27223367743661 is 16634776332272.

It is a cyclic number.

It is not a de Polignac number, because 27223367743661 - 2⁶ = 27223367743597 is a prime.

It is a super-2 number, since 2×27223367743661² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27223367743661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27223367343661) 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, 4785261305 + ... + 4785266993.

It is an arithmetic number, because the mean of its divisors is an integer number (894396988800).

Almost surely, 2^{27223367743661} is an apocalyptic number.

It is an amenable number.

27223367743661 is a deficient number, since it is larger than the sum of its proper divisors (1397335897939).

27223367743661 is a wasteful number, since it uses less digits than its factorization.

27223367743661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189.

The product of its digits is 64012032, while the sum is 59.

The spelling of 27223367743661 in words is "twenty-seven trillion, two hundred twenty-three billion, three hundred sixty-seven million, seven hundred forty-three thousand, six hundred sixty-one".