319730268286009 has 9 divisors (see below), whose sum is σ = 371931274016847. Its totient is φ = 274054408387704.

The previous prime is 319730268286007. The next prime is 319730268286133. The reversal of 319730268286009 is 900682862037913.

The square root of 319730268286009 is 17881003.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 314542533210409 + 5187735075600 = 17735347^2 + 2277660^2 .

It is not a de Polignac number, because 319730268286009 - 2¹ = 319730268286007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319730268286007) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 123889807 + ... + 126444235.

It is an arithmetic number, because the mean of its divisors is an integer number (41325697112983).

Almost surely, 2^{319730268286009} is an apocalyptic number.

319730268286009 is the 17881003-rd square number.

319730268286009 is the 8940502-nd centered octagonal number.

It is an amenable number.

319730268286009 is a deficient number, since it is larger than the sum of its proper divisors (52201005730838).

319730268286009 is an frugal number, since it uses more digits than its factorization.

319730268286009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108872 (or 2554436 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 319730268286009 in words is "three hundred nineteen trillion, seven hundred thirty billion, two hundred sixty-eight million, two hundred eighty-six thousand, nine".