8685032973444 has 81 divisors (see below), whose sum is σ = 22738309047727. Its totient is φ = 2795017991808.

The previous prime is 8685032973437. The next prime is 8685032973451. The reversal of 8685032973444 is 4443792305868.

The square root of 8685032973444 is 2947038.

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

8685032973444 is a `hidden beast` number, since 8 + 6 + 8 + 503 + 2 + 97 + 34 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (8685032973437) and next prime (8685032973451).

It can be written as a sum of positive squares in 4 ways, for example, as 148772204100 + 8536260769344 = 385710^2 + 2921688^2 .

It is a super-2 number, since 2×8685032973444² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 512776144 + ... + 512793080.

Almost surely, 2^{8685032973444} is an apocalyptic number.

8685032973444 is the 2947038-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8685032973444

8685032973444 is an abundant number, since it is smaller than the sum of its proper divisors (14053276074283).

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

8685032973444 is an equidigital number, since it uses as much as digits as its factorization.

8685032973444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33942 (or 16971 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 63.

The spelling of 8685032973444 in words is "eight trillion, six hundred eighty-five billion, thirty-two million, nine hundred seventy-three thousand, four hundred forty-four".