8467399897172 has 12 divisors (see below), whose sum is σ = 14818729804116. Its totient is φ = 4233477096000.

The previous prime is 8467399897139. The next prime is 8467399897193. The reversal of 8467399897172 is 2717989937648.

It can be written as a sum of positive squares in 2 ways, for example, as 5499794186896 + 2967605710276 = 2345164^2 + 1722674^2 .

It is a super-2 number, since 2×8467399897172² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55627643 + ... + 55779650.

It is an arithmetic number, because the mean of its divisors is an integer number (1234894150343).

Almost surely, 2^{8467399897172} is an apocalyptic number.

It is an amenable number.

8467399897172 is a deficient number, since it is larger than the sum of its proper divisors (6351329906944).

8467399897172 is a wasteful number, since it uses less digits than its factorization.

8467399897172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111426298 (or 111426296 counting only the distinct ones).

The product of its digits is 2304433152, while the sum is 80.

The spelling of 8467399897172 in words is "eight trillion, four hundred sixty-seven billion, three hundred ninety-nine million, eight hundred ninety-seven thousand, one hundred seventy-two".