2747773728 has 144 divisors (see below), whose sum is σ = 9053081856. Its totient is φ = 774282240.

The previous prime is 2747773703. The next prime is 2747773739. The reversal of 2747773728 is 8273777472.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137833 + ... + 156503.

It is an arithmetic number, because the mean of its divisors is an integer number (62868624).

Almost surely, 2^2747773728 is an apocalyptic number.

2747773728 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 2747773728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4526540928).

2747773728 is an abundant number, since it is smaller than the sum of its proper divisors (6305308128).

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

2747773728 is a wasteful number, since it uses less digits than its factorization.

2747773728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18767 (or 18756 counting only the distinct ones).

The product of its digits is 6453888, while the sum is 54.

The square root of 2747773728 is about 52419.2114400818. The cubic root of 2747773728 is about 1400.6414964900.

The spelling of 2747773728 in words is "two billion, seven hundred forty-seven million, seven hundred seventy-three thousand, seven hundred twenty-eight".