2689122212 has 72 divisors (see below), whose sum is σ = 5706441216. Its totient is φ = 1086016896.

The previous prime is 2689122199. The next prime is 2689122221. The reversal of 2689122212 is 2122219862.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2253488 + ... + 2254680.

It is an arithmetic number, because the mean of its divisors is an integer number (79256128).

Almost surely, 2^2689122212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2689122212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853220608).

2689122212 is an abundant number, since it is smaller than the sum of its proper divisors (3017319004).

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

2689122212 is a wasteful number, since it uses less digits than its factorization.

2689122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465 (or 1444 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 2689122212 is about 51856.7470248569. The cubic root of 2689122212 is about 1390.6041250223.

The spelling of 2689122212 in words is "two billion, six hundred eighty-nine million, one hundred twenty-two thousand, two hundred twelve".