87163254769 has 6 divisors (see below), whose sum is σ = 87804145814. Its totient is φ = 86527008000.

The previous prime is 87163254751. The next prime is 87163254779. The reversal of 87163254769 is 96745236178.

It can be written as a sum of positive squares in 3 ways, for example, as 19517487025 + 67645767744 = 139705^2 + 260088^2 .

It is not a de Polignac number, because 87163254769 - 2²⁷ = 87029037041 is a prime.

It is a super-2 number, since 2×87163254769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87163254749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2303232 + ... + 2340769.

Almost surely, 2^87163254769 is an apocalyptic number.

It is an amenable number.

87163254769 is a deficient number, since it is larger than the sum of its proper divisors (640891045).

87163254769 is an equidigital number, since it uses as much as digits as its factorization.

87163254769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644275 (or 4644138 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 58.

The spelling of 87163254769 in words is "eighty-seven billion, one hundred sixty-three million, two hundred fifty-four thousand, seven hundred sixty-nine".