434215778820808 has 16 divisors (see below), whose sum is σ = 816247527673500. Its totient is φ = 216549771441216.

The previous prime is 434215778820797. The next prime is 434215778820841. The reversal of 434215778820808 is 808028877512434.

It can be written as a sum of positive squares in 2 ways, for example, as 424014896590884 + 10200882229924 = 20591622^2 + 3193882^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69764742843 + ... + 69764749066.

Almost surely, 2^{434215778820808} is an apocalyptic number.

It is an amenable number.

434215778820808 is a deficient number, since it is larger than the sum of its proper divisors (382031748852692).

434215778820808 is a wasteful number, since it uses less digits than its factorization.

434215778820808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139529492304 (or 139529492300 counting only the distinct ones).

The product of its (nonzero) digits is 192675840, while the sum is 67.

The spelling of 434215778820808 in words is "four hundred thirty-four trillion, two hundred fifteen billion, seven hundred seventy-eight million, eight hundred twenty thousand, eight hundred eight".