319705142429 has 4 divisors (see below), whose sum is σ = 319772439360. Its totient is φ = 319637845500.

The previous prime is 319705142387. The next prime is 319705142437. The reversal of 319705142429 is 924241507913.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 924241507913 = 379 ⋅2438631947.

It is a cyclic number.

It is not a de Polignac number, because 319705142429 - 2²⁰ = 319704093853 is a prime.

It is a super-2 number, since 2×319705142429² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319705142479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33641339 + ... + 33650840.

It is an arithmetic number, because the mean of its divisors is an integer number (79943109840).

Almost surely, 2^319705142429 is an apocalyptic number.

It is an amenable number.

319705142429 is a deficient number, since it is larger than the sum of its proper divisors (67296931).

319705142429 is an equidigital number, since it uses as much as digits as its factorization.

319705142429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67296930.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 319705142429 in words is "three hundred nineteen billion, seven hundred five million, one hundred forty-two thousand, four hundred twenty-nine".