434879217827 has 4 divisors (see below), whose sum is σ = 435037416000. Its totient is φ = 434721019656.

The previous prime is 434879217821. The next prime is 434879217847. The reversal of 434879217827 is 728712978434.

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

It is a cyclic number.

It is not a de Polignac number, because 434879217827 - 2⁴ = 434879217811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 434879217827.

It is not an unprimeable number, because it can be changed into a prime (434879217821) 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, 79094963 + ... + 79100460.

It is an arithmetic number, because the mean of its divisors is an integer number (108759354000).

Almost surely, 2^434879217827 is an apocalyptic number.

434879217827 is a deficient number, since it is larger than the sum of its proper divisors (158198173).

434879217827 is a wasteful number, since it uses less digits than its factorization.

434879217827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158198172.

The product of its digits is 37933056, while the sum is 62.

The spelling of 434879217827 in words is "four hundred thirty-four billion, eight hundred seventy-nine million, two hundred seventeen thousand, eight hundred twenty-seven".