869944374219 has 8 divisors (see below), whose sum is σ = 1197342794752. Its totient is φ = 561254434920.

The previous prime is 869944374179. The next prime is 869944374251. The reversal of 869944374219 is 912473449968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 869944374219 - 2⁹ = 869944373707 is a prime.

It is a super-2 number, since 2×869944374219² (a number of 25 digits) contains 22 as substring.

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 869944374219.

It is not an unprimeable number, because it can be changed into a prime (869944304219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4677120199 + ... + 4677120384.

It is an arithmetic number, because the mean of its divisors is an integer number (149667849344).

Almost surely, 2^869944374219 is an apocalyptic number.

869944374219 is a deficient number, since it is larger than the sum of its proper divisors (327398420533).

869944374219 is a wasteful number, since it uses less digits than its factorization.

869944374219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354240617.

The product of its digits is 94058496, while the sum is 66.

The spelling of 869944374219 in words is "eight hundred sixty-nine billion, nine hundred forty-four million, three hundred seventy-four thousand, two hundred nineteen".