319677172873 has 2 divisors, whose sum is σ = 319677172874. Its totient is φ = 319677172872.

The previous prime is 319677172721. The next prime is 319677172933. The reversal of 319677172873 is 378271776913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185715316809 + 133961856064 = 430947^2 + 366008^2 .

It is a cyclic number.

It is not a de Polignac number, because 319677172873 - 2⁹ = 319677172361 is a prime.

It is not a weakly prime, because it can be changed into another prime (319672172873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159838586436 + 159838586437.

It is an arithmetic number, because the mean of its divisors is an integer number (159838586437).

Almost surely, 2^319677172873 is an apocalyptic number.

It is an amenable number.

319677172873 is a deficient number, since it is larger than the sum of its proper divisors (1).

319677172873 is an equidigital number, since it uses as much as digits as its factorization.

319677172873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18670176, while the sum is 61.

The spelling of 319677172873 in words is "three hundred nineteen billion, six hundred seventy-seven million, one hundred seventy-two thousand, eight hundred seventy-three".