434808778433 has 4 divisors (see below), whose sum is σ = 434872085460. Its totient is φ = 434745471408.

The previous prime is 434808778403. The next prime is 434808778447. The reversal of 434808778433 is 334877808434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34414702144 + 400394076289 = 185512^2 + 632767^2 .

It is a cyclic number.

It is not a de Polignac number, because 434808778433 - 2¹⁴ = 434808762049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434808778403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31643210 + ... + 31656947.

It is an arithmetic number, because the mean of its divisors is an integer number (108718021365).

Almost surely, 2^434808778433 is an apocalyptic number.

It is an amenable number.

434808778433 is a deficient number, since it is larger than the sum of its proper divisors (63307027).

434808778433 is an equidigital number, since it uses as much as digits as its factorization.

434808778433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63307026.

The product of its (nonzero) digits is 43352064, while the sum is 59.

The spelling of 434808778433 in words is "four hundred thirty-four billion, eight hundred eight million, seven hundred seventy-eight thousand, four hundred thirty-three".