847679078419 has 2 divisors, whose sum is σ = 847679078420. Its totient is φ = 847679078418.

The previous prime is 847679078359. The next prime is 847679078429. The reversal of 847679078419 is 914870976748.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 847679078419 - 2²⁷ = 847544860691 is a prime.

It is a super-2 number, since 2×847679078419² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (847679078429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423839539209 + 423839539210.

It is an arithmetic number, because the mean of its divisors is an integer number (423839539210).

Almost surely, 2^847679078419 is an apocalyptic number.

847679078419 is a deficient number, since it is larger than the sum of its proper divisors (1).

847679078419 is an equidigital number, since it uses as much as digits as its factorization.

847679078419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170698752, while the sum is 70.

The spelling of 847679078419 in words is "eight hundred forty-seven billion, six hundred seventy-nine million, seventy-eight thousand, four hundred nineteen".