878744738561467 has 2 divisors, whose sum is σ = 878744738561468. Its totient is φ = 878744738561466.

The previous prime is 878744738561429. The next prime is 878744738561489. The reversal of 878744738561467 is 764165837447878.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878744738561467 is a prime.

It is not a weakly prime, because it can be changed into another prime (878744778561467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439372369280733 + 439372369280734.

It is an arithmetic number, because the mean of its divisors is an integer number (439372369280734).

Almost surely, 2^{878744738561467} is an apocalyptic number.

878744738561467 is a deficient number, since it is larger than the sum of its proper divisors (1).

878744738561467 is an equidigital number, since it uses as much as digits as its factorization.

878744738561467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42485022720, while the sum is 85.

The spelling of 878744738561467 in words is "eight hundred seventy-eight trillion, seven hundred forty-four billion, seven hundred thirty-eight million, five hundred sixty-one thousand, four hundred sixty-seven".