2181107862 has 12 divisors (see below), whose sum is σ = 4725733740. Its totient is φ = 727035948.

The previous prime is 2181107843. The next prime is 2181107867. The reversal of 2181107862 is 2687011812.

It is a super-2 number, since 2×2181107862² = 9514463011356422088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2181107867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60586312 + ... + 60586347.

It is an arithmetic number, because the mean of its divisors is an integer number (393811145).

Almost surely, 2^2181107862 is an apocalyptic number.

2181107862 is an abundant number, since it is smaller than the sum of its proper divisors (2544625878).

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

2181107862 is a wasteful number, since it uses less digits than its factorization.

2181107862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121172667 (or 121172664 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 2181107862 is about 46702.3325113425. The cubic root of 2181107862 is about 1296.8578675219.

The spelling of 2181107862 in words is "two billion, one hundred eighty-one million, one hundred seven thousand, eight hundred sixty-two".