819216456297 has 8 divisors (see below), whose sum is σ = 1110801974880. Its totient is φ = 536887620960.

The previous prime is 819216456283. The next prime is 819216456329. The reversal of 819216456297 is 792654612918.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 819216456297 - 2⁷ = 819216456169 is a prime.

It is a super-2 number, since 2×819216456297² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 819216456297.

It is not an unprimeable number, because it can be changed into a prime (819216456277) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2314170604 + ... + 2314170957.

It is an arithmetic number, because the mean of its divisors is an integer number (138850246860).

Almost surely, 2^819216456297 is an apocalyptic number.

It is an amenable number.

819216456297 is a deficient number, since it is larger than the sum of its proper divisors (291585518583).

819216456297 is a wasteful number, since it uses less digits than its factorization.

819216456297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628341623.

The product of its digits is 13063680, while the sum is 60.

The spelling of 819216456297 in words is "eight hundred nineteen billion, two hundred sixteen million, four hundred fifty-six thousand, two hundred ninety-seven".