816297846249 has 16 divisors (see below), whose sum is σ = 1113772980672. Its totient is φ = 531512099328.

The previous prime is 816297846229. The next prime is 816297846263. The reversal of 816297846249 is 942648792618.

It is not a de Polignac number, because 816297846249 - 2¹⁵ = 816297813481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 816297846249.

It is not an unprimeable number, because it can be changed into a prime (816297846209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2178529 + ... + 2525585.

It is an arithmetic number, because the mean of its divisors is an integer number (69610811292).

Almost surely, 2^816297846249 is an apocalyptic number.

It is an amenable number.

816297846249 is a deficient number, since it is larger than the sum of its proper divisors (297475134423).

816297846249 is a wasteful number, since it uses less digits than its factorization.

816297846249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365336.

The product of its digits is 83607552, while the sum is 66.

The spelling of 816297846249 in words is "eight hundred sixteen billion, two hundred ninety-seven million, eight hundred forty-six thousand, two hundred forty-nine".