8397343953225 has 18 divisors (see below), whose sum is σ = 15040576058846. Its totient is φ = 4478583441600.

The previous prime is 8397343953091. The next prime is 8397343953233. The reversal of 8397343953225 is 5223593437938.

8397343953225 is a `hidden beast` number, since 8 + 3 + 9 + 73 + 4 + 3 + 9 + 532 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1386372018249 + 7010971934976 = 1177443^2 + 2647824^2 .

It is not a de Polignac number, because 8397343953225 - 2⁹ = 8397343952713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18660764116 + ... + 18660764565.

Almost surely, 2^{8397343953225} is an apocalyptic number.

It is an amenable number.

8397343953225 is a deficient number, since it is larger than the sum of its proper divisors (6643232105621).

8397343953225 is a wasteful number, since it uses less digits than its factorization.

8397343953225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37321528697 (or 37321528689 counting only the distinct ones).

The product of its digits is 146966400, while the sum is 63.

The spelling of 8397343953225 in words is "eight trillion, three hundred ninety-seven billion, three hundred forty-three million, nine hundred fifty-three thousand, two hundred twenty-five".