27172638887022 has 48 divisors (see below), whose sum is σ = 62785699769520. Its totient is φ = 8463420308736.

The previous prime is 27172638886997. The next prime is 27172638887027. The reversal of 27172638887022 is 22078883627172.

27172638887022 is a `hidden beast` number, since 2 + 7 + 172 + 6 + 388 + 87 + 0 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27172638887027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319380033 + ... + 319465100.

It is an arithmetic number, because the mean of its divisors is an integer number (1308035411865).

Almost surely, 2^{27172638887022} is an apocalyptic number.

27172638887022 is an abundant number, since it is smaller than the sum of its proper divisors (35613060882498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27172638887022 is a wasteful number, since it uses less digits than its factorization.

27172638887022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638845297 (or 638845294 counting only the distinct ones).

The product of its (nonzero) digits is 50577408, while the sum is 63.

The spelling of 27172638887022 in words is "twenty-seven trillion, one hundred seventy-two billion, six hundred thirty-eight million, eight hundred eighty-seven thousand, twenty-two".