319219594421 has 8 divisors (see below), whose sum is σ = 392885654784. Its totient is φ = 252569349360.

The previous prime is 319219594387. The next prime is 319219594429. The reversal of 319219594421 is 124495912913.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 319219594421 - 2²² = 319215400117 is a prime.

It is a super-2 number, since 2×319219594421² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 319219594421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319219594429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753953725 + ... + 1753953906.

It is an arithmetic number, because the mean of its divisors is an integer number (49110706848).

Almost surely, 2^319219594421 is an apocalyptic number.

It is an amenable number.

319219594421 is a deficient number, since it is larger than the sum of its proper divisors (73666060363).

319219594421 is a wasteful number, since it uses less digits than its factorization.

319219594421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507907651.

The product of its digits is 699840, while the sum is 50.

The spelling of 319219594421 in words is "three hundred nineteen billion, two hundred nineteen million, five hundred ninety-four thousand, four hundred twenty-one".