2149579068 has 96 divisors (see below), whose sum is σ = 6231181824. Its totient is φ = 561593088.

The previous prime is 2149579067. The next prime is 2149579099. The reversal of 2149579068 is 8609759412.

2149579068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2149579068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149579067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107646 + ... + 126042.

It is an arithmetic number, because the mean of its divisors is an integer number (64908144).

Almost surely, 2^2149579068 is an apocalyptic number.

2149579068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2149579068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3115590912).

2149579068 is an abundant number, since it is smaller than the sum of its proper divisors (4081602756).

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

2149579068 is a wasteful number, since it uses less digits than its factorization.

2149579068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18531 (or 18529 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 2149579068 is about 46363.5532288025. The cubic root of 2149579068 is about 1290.5786455164.

The spelling of 2149579068 in words is "two billion, one hundred forty-nine million, five hundred seventy-nine thousand, sixty-eight".