2668426852 has 72 divisors (see below), whose sum is σ = 5794547136. Its totient is φ = 1052797824.

The previous prime is 2668426847. The next prime is 2668426907. The reversal of 2668426852 is 2586248662.

It is a junction number, because it is equal to n+sod(n) for n = 2668426796 and 2668426805.

It is an unprimeable number.

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, 3042238 + ... + 3043114.

Almost surely, 2^2668426852 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 2668426852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897273568).

2668426852 is an abundant number, since it is smaller than the sum of its proper divisors (3126120284).

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

2668426852 is a wasteful number, since it uses less digits than its factorization.

2668426852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1542 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The square root of 2668426852 is about 51656.8180591875. The cubic root of 2668426852 is about 1387.0275926808.

The spelling of 2668426852 in words is "two billion, six hundred sixty-eight million, four hundred twenty-six thousand, eight hundred fifty-two".