319794722464 has 192 divisors, whose sum is σ = 766443492864. Its totient is φ = 128378105856.

The previous prime is 319794722461. The next prime is 319794722497. The reversal of 319794722464 is 464227497913.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 319794722399 and 319794722408.

It is not an unprimeable number, because it can be changed into a prime (319794722461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232916082 + ... + 232917454.

It is an arithmetic number, because the mean of its divisors is an integer number (3991893192).

Almost surely, 2^319794722464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 319794722464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383221746432).

319794722464 is an abundant number, since it is smaller than the sum of its proper divisors (446648770400).

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

319794722464 is a wasteful number, since it uses less digits than its factorization.

319794722464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319 (or 2311 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 58.

The spelling of 319794722464 in words is "three hundred nineteen billion, seven hundred ninety-four million, seven hundred twenty-two thousand, four hundred sixty-four".