2945278182 has 72 divisors (see below), whose sum is σ = 7531935768. Its totient is φ = 764998080.

The previous prime is 2945278159. The next prime is 2945278187. The reversal of 2945278182 is 2818725492.

It is a super-5 number, since 5×2945278182⁵ (a number of 49 digits) contains 55555 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945278187) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 5823 + ... + 76970.

It is an arithmetic number, because the mean of its divisors is an integer number (104610219).

Almost surely, 2^2945278182 is an apocalyptic number.

2945278182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2945278182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3765967884).

2945278182 is an abundant number, since it is smaller than the sum of its proper divisors (4586657586).

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

2945278182 is a wasteful number, since it uses less digits than its factorization.

2945278182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82834 (or 82816 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 2945278182 is about 54270.4171902151. The cubic root of 2945278182 is about 1433.4265362985.

The spelling of 2945278182 in words is "two billion, nine hundred forty-five million, two hundred seventy-eight thousand, one hundred eighty-two".