434677816565 has 16 divisors (see below), whose sum is σ = 534439200960. Its totient is φ = 339194993280.

The previous prime is 434677816553. The next prime is 434677816591. The reversal of 434677816565 is 565618776434.

It is a happy number.

It is not a de Polignac number, because 434677816565 - 2⁴ = 434677816549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434677816498 and 434677816507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868706 + ... + 1274364.

It is an arithmetic number, because the mean of its divisors is an integer number (33402450060).

Almost surely, 2^434677816565 is an apocalyptic number.

It is an amenable number.

434677816565 is a deficient number, since it is larger than the sum of its proper divisors (99761384395).

434677816565 is a wasteful number, since it uses less digits than its factorization.

434677816565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410932.

The product of its digits is 101606400, while the sum is 62.

The spelling of 434677816565 in words is "four hundred thirty-four billion, six hundred seventy-seven million, eight hundred sixteen thousand, five hundred sixty-five".