869073121290 has 48 divisors (see below), whose sum is σ = 2292629268384. Its totient is φ = 210684392160.

The previous prime is 869073121283. The next prime is 869073121297. The reversal of 869073121290 is 92121370968.

It is an interprime number because it is at equal distance from previous prime (869073121283) and next prime (869073121297).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (869073121297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119703412 + ... + 119710671.

It is an arithmetic number, because the mean of its divisors is an integer number (47763109758).

Almost surely, 2^869073121290 is an apocalyptic number.

869073121290 is an abundant number, since it is smaller than the sum of its proper divisors (1423556147094).

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

869073121290 is a wasteful number, since it uses less digits than its factorization.

869073121290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239414115 (or 239414104 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 869073121290 in words is "eight hundred sixty-nine billion, seventy-three million, one hundred twenty-one thousand, two hundred ninety".