126716468419 has 4 divisors (see below), whose sum is σ = 134170378344. Its totient is φ = 119262558496.

The previous prime is 126716468407. The next prime is 126716468467. The reversal of 126716468419 is 914864617621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126716468419 is a prime.

It is a super-2 number, since 2×126716468419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126716468419.

It is not an unprimeable number, because it can be changed into a prime (126716468519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3726954937 + ... + 3726954970.

It is an arithmetic number, because the mean of its divisors is an integer number (33542594586).

Almost surely, 2^126716468419 is an apocalyptic number.

126716468419 is a deficient number, since it is larger than the sum of its proper divisors (7453909925).

126716468419 is an equidigital number, since it uses as much as digits as its factorization.

126716468419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7453909924.

The product of its digits is 3483648, while the sum is 55.

The spelling of 126716468419 in words is "one hundred twenty-six billion, seven hundred sixteen million, four hundred sixty-eight thousand, four hundred nineteen".