2661879108 has 192 divisors, whose sum is σ = 7828144128. Its totient is φ = 686499840.

The previous prime is 2661879083. The next prime is 2661879109. The reversal of 2661879108 is 8019781662.

It is not an unprimeable number, because it can be changed into a prime (2661879109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6949885 + ... + 6950267.

It is an arithmetic number, because the mean of its divisors is an integer number (40771584).

Almost surely, 2^2661879108 is an apocalyptic number.

2661879108 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 2661879108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3914072064).

2661879108 is an abundant number, since it is smaller than the sum of its proper divisors (5166265020).

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

2661879108 is a wasteful number, since it uses less digits than its factorization.

2661879108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 2661879108 is about 51593.4017874379. The cubic root of 2661879108 is about 1385.8921746252.

The spelling of 2661879108 in words is "two billion, six hundred sixty-one million, eight hundred seventy-nine thousand, one hundred eight".