2918889216 has 144 divisors (see below), whose sum is σ = 8685119520. Its totient is φ = 966942720.

The previous prime is 2918889203. The next prime is 2918889229. The reversal of 2918889216 is 6129888192.

It is an interprime number because it is at equal distance from previous prime (2918889203) and next prime (2918889229).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1194556 + ... + 1196996.

It is an arithmetic number, because the mean of its divisors is an integer number (60313330).

Almost surely, 2^2918889216 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 2918889216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4342559760).

2918889216 is an abundant number, since it is smaller than the sum of its proper divisors (5766230304).

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

2918889216 is a wasteful number, since it uses less digits than its factorization.

2918889216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639 (or 2619 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 2918889216 is about 54026.7453767113. The cubic root of 2918889216 is about 1429.1326371635.

The spelling of 2918889216 in words is "two billion, nine hundred eighteen million, eight hundred eighty-nine thousand, two hundred sixteen".