168671379419 has 2 divisors, whose sum is σ = 168671379420. Its totient is φ = 168671379418.

The previous prime is 168671379367. The next prime is 168671379473. The reversal of 168671379419 is 914973176861.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168671379419 is a prime.

It is a super-2 number, since 2×168671379419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168671379479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84335689709 + 84335689710.

It is an arithmetic number, because the mean of its divisors is an integer number (84335689710).

Almost surely, 2^168671379419 is an apocalyptic number.

168671379419 is a deficient number, since it is larger than the sum of its proper divisors (1).

168671379419 is an equidigital number, since it uses as much as digits as its factorization.

168671379419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 62.

The spelling of 168671379419 in words is "one hundred sixty-eight billion, six hundred seventy-one million, three hundred seventy-nine thousand, four hundred nineteen".