28142314134489 has 117 divisors (see below), whose sum is σ = 44668767565893. Its totient is φ = 17727685583688.

The previous prime is 28142314134457. The next prime is 28142314134491. The reversal of 28142314134489 is 98443141324182.

It is a happy number.

The square root of 28142314134489 is 5304933.

It is a perfect power (a square), and thus also a powerful number.

28142314134489 is a `hidden beast` number, since 2 + 8 + 1 + 4 + 23 + 1 + 4 + 134 + 489 = 666.

It is not a de Polignac number, because 28142314134489 - 2⁵ = 28142314134457 is a prime.

It is a super-2 number, since 2×28142314134489² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28142414134489) by changing a digit.

It is a polite number, since it can be written in 116 ways as a sum of consecutive naturals, for example, 73478626792 + ... + 73478627174.

Almost surely, 2^{28142314134489} is an apocalyptic number.

28142314134489 is the 5304933-rd square number.

28142314134489 is the 2652467-th centered octagonal number.

It is an amenable number.

28142314134489 is a deficient number, since it is larger than the sum of its proper divisors (16526453431404).

28142314134489 is an frugal number, since it uses more digits than its factorization.

28142314134489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840 (or 405 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The spelling of 28142314134489 in words is "twenty-eight trillion, one hundred forty-two billion, three hundred fourteen million, one hundred thirty-four thousand, four hundred eighty-nine".