869818122 has 32 divisors (see below), whose sum is σ = 1938447360. Its totient is φ = 289111680.

The previous prime is 869818121. The next prime is 869818127. The reversal of 869818122 is 221818968.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (869818121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3754 + ... + 41877.

It is an arithmetic number, because the mean of its divisors is an integer number (60576480).

Almost surely, 2^869818122 is an apocalyptic number.

869818122 is an abundant number, since it is smaller than the sum of its proper divisors (1068629238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869818122 is a wasteful number, since it uses less digits than its factorization.

869818122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45995 (or 45989 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 869818122 is about 29492.6791255050. The cubic root of 869818122 is about 954.5737421376.

The spelling of 869818122 in words is "eight hundred sixty-nine million, eight hundred eighteen thousand, one hundred twenty-two".