8434408879969 has 2 divisors, whose sum is σ = 8434408879970. Its totient is φ = 8434408879968.

The previous prime is 8434408879933. The next prime is 8434408879987. The reversal of 8434408879969 is 9699788044348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6353348742225 + 2081060137744 = 2520585^2 + 1442588^2 .

It is a cyclic number.

It is not a de Polignac number, because 8434408879969 - 2⁴¹ = 6235385624417 is a prime.

It is a super-2 number, since 2×8434408879969² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8434405879969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4217204439984 + 4217204439985.

It is an arithmetic number, because the mean of its divisors is an integer number (4217204439985).

Almost surely, 2^{8434408879969} is an apocalyptic number.

It is an amenable number.

8434408879969 is a deficient number, since it is larger than the sum of its proper divisors (1).

8434408879969 is an equidigital number, since it uses as much as digits as its factorization.

8434408879969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3009871872, while the sum is 79.

The spelling of 8434408879969 in words is "eight trillion, four hundred thirty-four billion, four hundred eight million, eight hundred seventy-nine thousand, nine hundred sixty-nine".