869880840193 has 4 divisors (see below), whose sum is σ = 872976501828. Its totient is φ = 866785178560.

The previous prime is 869880840187. The next prime is 869880840209. The reversal of 869880840193 is 391048088968.

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

It can be written as a sum of positive squares in 2 ways, for example, as 580191460209 + 289689379984 = 761703^2 + 538228^2 .

It is a cyclic number.

It is not a de Polignac number, because 869880840193 - 2¹³ = 869880832001 is a prime.

It is a super-2 number, since 2×869880840193² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869880840133) 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, 1547830396 + ... + 1547830957.

It is an arithmetic number, because the mean of its divisors is an integer number (218244125457).

Almost surely, 2^869880840193 is an apocalyptic number.

It is an amenable number.

869880840193 is a deficient number, since it is larger than the sum of its proper divisors (3095661635).

869880840193 is a wasteful number, since it uses less digits than its factorization.

869880840193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095661634.

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 869880840193 in words is "eight hundred sixty-nine billion, eight hundred eighty million, eight hundred forty thousand, one hundred ninety-three".