8790827694489 has 45 divisors (see below), whose sum is σ = 13570531234821. Its totient is φ = 5670968050440.

The previous prime is 8790827694469. The next prime is 8790827694491. The reversal of 8790827694489 is 9844967280978.

The square root of 8790827694489 is 2964933.

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

8790827694489 is a `hidden beast` number, since 8 + 7 + 90 + 8 + 27 + 69 + 448 + 9 = 666.

It is not a de Polignac number, because 8790827694489 - 2¹¹ = 8790827692441 is a prime.

It is a super-2 number, since 2×8790827694489² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (8790827694449) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 827210994 + ... + 827221620.

Almost surely, 2^{8790827694489} is an apocalyptic number.

8790827694489 is the 2964933-rd square number.

8790827694489 is the 1482467-th centered octagonal number.

It is an amenable number.

8790827694489 is a deficient number, since it is larger than the sum of its proper divisors (4779703540332).

8790827694489 is an frugal number, since it uses more digits than its factorization.

8790827694489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21328 (or 10661 counting only the distinct ones).

The product of its (nonzero) digits is 3511517184, while the sum is 81.

Multiplying 8790827694489 by its sum of digits (81), we get a square (712057043253609 = 26684397²).

8790827694489 divided by its sum of digits (81) gives a square (108528736969 = 329437²).

The spelling of 8790827694489 in words is "eight trillion, seven hundred ninety billion, eight hundred twenty-seven million, six hundred ninety-four thousand, four hundred eighty-nine".