869875194241 has 27 divisors (see below), whose sum is σ = 936738741513. Its totient is φ = 807618472320.

The previous prime is 869875194239. The next prime is 869875194257. The reversal of 869875194241 is 142491578968.

The square root of 869875194241 is 932671.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 285268151025 + 584607043216 = 534105^2 + 764596^2 .

It is not a de Polignac number, because 869875194241 - 2¹ = 869875194239 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869875197241) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1315998451 + ... + 1315999111.

Almost surely, 2^869875194241 is an apocalyptic number.

869875194241 is the 932671-st square number.

869875194241 is the 466336-th centered octagonal number.

It is an amenable number.

869875194241 is a deficient number, since it is larger than the sum of its proper divisors (66863547272).

869875194241 is an frugal number, since it uses more digits than its factorization.

869875194241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 761 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 64.

Multiplying 869875194241 by its sum of digits (64), we get a square (55672012431424 = 7461368²).

The spelling of 869875194241 in words is "eight hundred sixty-nine billion, eight hundred seventy-five million, one hundred ninety-four thousand, two hundred forty-one".