27122022172 has 48 divisors (see below), whose sum is σ = 54960454080. Its totient is φ = 11470897152.

The previous prime is 27122022163. The next prime is 27122022197.

27122022172 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 27122022172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 944604 + ... + 972892.

It is an arithmetic number, because the mean of its divisors is an integer number (1145009460).

Almost surely, 2^27122022172 is an apocalyptic number.

It is an amenable number.

27122022172 is an abundant number, since it is smaller than the sum of its proper divisors (27838431908).

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

27122022172 is a wasteful number, since it uses less digits than its factorization.

27122022172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28750 (or 28748 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

It can be divided in two parts, 271220 and 22172, that added together give a palindrome (293392).

The spelling of 27122022172 in words is "twenty-seven billion, one hundred twenty-two million, twenty-two thousand, one hundred seventy-two".