2999918080 has 80 divisors (see below), whose sum is σ = 7206748560. Its totient is φ = 1197637632.

The previous prime is 2999918069. The next prime is 2999918111. The reversal of 2999918080 is 808199992.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013976 + ... + 2015464.

It is an arithmetic number, because the mean of its divisors is an integer number (90084357).

Almost surely, 2^2999918080 is an apocalyptic number.

2999918080 is a gapful number since it is divisible by the number (20) 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 2999918080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603374280).

2999918080 is an abundant number, since it is smaller than the sum of its proper divisors (4206830480).

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

2999918080 is an equidigital number, since it uses as much as digits as its factorization.

2999918080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 55.

The square root of 2999918080 is about 54771.5079215462. The cubic root of 2999918080 is about 1442.2364425118.

The spelling of 2999918080 in words is "two billion, nine hundred ninety-nine million, nine hundred eighteen thousand, eighty".