384207797969 has 6 divisors (see below), whose sum is σ = 405493548930. Its totient is φ = 363986334576.

The previous prime is 384207797959. The next prime is 384207797971. The reversal of 384207797969 is 969797702483.

It can be written as a sum of positive squares in only one way, i.e., 221224419025 + 162983378944 = 470345^2 + 403712^2 .

It is a de Polignac number, because none of the positive numbers 2^k-384207797969 is a prime.

It is a super-2 number, since 2×384207797969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384207797929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 532143404 + ... + 532144125.

It is an arithmetic number, because the mean of its divisors is an integer number (67582258155).

Almost surely, 2^384207797969 is an apocalyptic number.

It is an amenable number.

384207797969 is a deficient number, since it is larger than the sum of its proper divisors (21285750961).

384207797969 is a wasteful number, since it uses less digits than its factorization.

384207797969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064287567 (or 1064287548 counting only the distinct ones).

The product of its (nonzero) digits is 288054144, while the sum is 71.

The spelling of 384207797969 in words is "three hundred eighty-four billion, two hundred seven million, seven hundred ninety-seven thousand, nine hundred sixty-nine".