67434896809 has 16 divisors (see below), whose sum is σ = 78297117696. Its totient is φ = 56882826000.

The previous prime is 67434896747. The next prime is 67434896819. The reversal of 67434896809 is 90869843476.

It is not a de Polignac number, because 67434896809 - 2⁹ = 67434896297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67434896819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147834 + ... + 395884.

It is an arithmetic number, because the mean of its divisors is an integer number (4893569856).

Almost surely, 2^67434896809 is an apocalyptic number.

It is an amenable number.

67434896809 is a deficient number, since it is larger than the sum of its proper divisors (10862220887).

67434896809 is a wasteful number, since it uses less digits than its factorization.

67434896809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248676.

The product of its (nonzero) digits is 62705664, while the sum is 64.

The spelling of 67434896809 in words is "sixty-seven billion, four hundred thirty-four million, eight hundred ninety-six thousand, eight hundred nine".