8397817855319 has 12 divisors (see below), whose sum is σ = 8922622624608. Its totient is φ = 7902271622400.

The previous prime is 8397817855211. The next prime is 8397817855331. The reversal of 8397817855319 is 9135587187938.

It is not a de Polignac number, because 8397817855319 - 2¹² = 8397817851223 is a prime.

It is a super-2 number, since 2×8397817855319² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8397817855619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1391087 + ... + 4327904.

It is an arithmetic number, because the mean of its divisors is an integer number (743551885384).

Almost surely, 2^{8397817855319} is an apocalyptic number.

8397817855319 is a deficient number, since it is larger than the sum of its proper divisors (524804769289).

8397817855319 is a wasteful number, since it uses less digits than its factorization.

8397817855319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724106 (or 5724089 counting only the distinct ones).

The product of its digits is 457228800, while the sum is 74.

The spelling of 8397817855319 in words is "eight trillion, three hundred ninety-seven billion, eight hundred seventeen million, eight hundred fifty-five thousand, three hundred nineteen".