847373369969 has 6 divisors (see below), whose sum is σ = 985720042674. Its totient is φ = 726320031360.

The previous prime is 847373369957. The next prime is 847373369971. The reversal of 847373369969 is 969963373748.

It can be written as a sum of positive squares in only one way, i.e., 694367224369 + 153006145600 = 833287^2 + 391160^2 .

It is a de Polignac number, because none of the positive numbers 2^k-847373369969 is a prime.

It is a super-2 number, since 2×847373369969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 847373369896 and 847373369905.

It is not an unprimeable number, because it can be changed into a prime (847373369069) 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, 8646666992 + ... + 8646667089.

It is an arithmetic number, because the mean of its divisors is an integer number (164286673779).

Almost surely, 2^847373369969 is an apocalyptic number.

It is an amenable number.

847373369969 is a deficient number, since it is larger than the sum of its proper divisors (138346672705).

847373369969 is a wasteful number, since it uses less digits than its factorization.

847373369969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17293334095 (or 17293334088 counting only the distinct ones).

The product of its digits is 1111065984, while the sum is 74.

The spelling of 847373369969 in words is "eight hundred forty-seven billion, three hundred seventy-three million, three hundred sixty-nine thousand, nine hundred sixty-nine".