434344077678 has 64 divisors (see below), whose sum is σ = 995088526848. Its totient is φ = 123810785280.

The previous prime is 434344077677. The next prime is 434344077719. The reversal of 434344077678 is 876770443434.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434344077677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69860826 + ... + 69867042.

It is an arithmetic number, because the mean of its divisors is an integer number (15548258232).

Almost surely, 2^434344077678 is an apocalyptic number.

434344077678 is an abundant number, since it is smaller than the sum of its proper divisors (560744449170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

434344077678 is a wasteful number, since it uses less digits than its factorization.

434344077678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9817.

The product of its (nonzero) digits is 37933056, while the sum is 57.

The spelling of 434344077678 in words is "four hundred thirty-four billion, three hundred forty-four million, seventy-seven thousand, six hundred seventy-eight".