319856982481 has 3 divisors (see below), whose sum is σ = 319857548041. Its totient is φ = 319856416922.

The previous prime is 319856982439. The next prime is 319856982493. The reversal of 319856982481 is 184289658913.

It is a happy number.

The square root of 319856982481 is 565559.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-319856982481 is a prime.

It is a super-2 number, since 2×319856982481² (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 (319856989481) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 282780 + ... + 848338.

Almost surely, 2^319856982481 is an apocalyptic number.

319856982481 is the 565559-th square number.

319856982481 is the 282780-th centered octagonal number.

It is an amenable number.

319856982481 is a deficient number, since it is larger than the sum of its proper divisors (565560).

319856982481 is an frugal number, since it uses more digits than its factorization.

319856982481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131118 (or 565559 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 64.

Multiplying 319856982481 by its sum of digits (64), we get a square (20470846878784 = 4524472²).

The spelling of 319856982481 in words is "three hundred nineteen billion, eight hundred fifty-six million, nine hundred eighty-two thousand, four hundred eighty-one".