8390449945696 has 96 divisors (see below), whose sum is σ = 21214649530368. Its totient is φ = 3174981511680.

The previous prime is 8390449945693. The next prime is 8390449945733. The reversal of 8390449945696 is 6965499440938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390449945693) 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, 62570760 + ... + 62704711.

It is an arithmetic number, because the mean of its divisors is an integer number (220985932608).

Almost surely, 2^{8390449945696} is an apocalyptic number.

It is an amenable number.

8390449945696 is an abundant number, since it is smaller than the sum of its proper divisors (12824199584672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8390449945696 is a wasteful number, since it uses less digits than its factorization.

8390449945696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125275524 (or 125275516 counting only the distinct ones).

The product of its (nonzero) digits is 1813985280, while the sum is 76.

The spelling of 8390449945696 in words is "eight trillion, three hundred ninety billion, four hundred forty-nine million, nine hundred forty-five thousand, six hundred ninety-six".