605643624434 has 4 divisors (see below), whose sum is σ = 908465436654. Its totient is φ = 302821812216.

The previous prime is 605643624359. The next prime is 605643624437. The reversal of 605643624434 is 434426346506.

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 only one way, i.e., 447674737225 + 157968887209 = 669085^2 + 397453^2 .

It is not an unprimeable number, because it can be changed into a prime (605643624437) 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 as a sum of consecutive naturals, namely, 151410906107 + ... + 151410906110.

Almost surely, 2^605643624434 is an apocalyptic number.

605643624434 is a deficient number, since it is larger than the sum of its proper divisors (302821812220).

605643624434 is a wasteful number, since it uses less digits than its factorization.

605643624434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302821812219.

The product of its (nonzero) digits is 4976640, while the sum is 47.

The spelling of 605643624434 in words is "six hundred five billion, six hundred forty-three million, six hundred twenty-four thousand, four hundred thirty-four".