27223657545477 has 32 divisors (see below), whose sum is σ = 38801246330880. Its totient is φ = 16940468583360.

The previous prime is 27223657545467. The next prime is 27223657545481. The reversal of 27223657545477 is 77454575632272.

It is not a de Polignac number, because 27223657545477 - 2¹⁴ = 27223657529093 is a prime.

It is a super-2 number, since 2×27223657545477² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27223657545437) 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, 2611263 + ... + 7827260.

It is an arithmetic number, because the mean of its divisors is an integer number (1212538947840).

Almost surely, 2^{27223657545477} is an apocalyptic number.

It is an amenable number.

27223657545477 is a deficient number, since it is larger than the sum of its proper divisors (11577588785403).

27223657545477 is a wasteful number, since it uses less digits than its factorization.

27223657545477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439553.

The product of its digits is 691488000, while the sum is 66.

The spelling of 27223657545477 in words is "twenty-seven trillion, two hundred twenty-three billion, six hundred fifty-seven million, five hundred forty-five thousand, four hundred seventy-seven".