2756389812 has 96 divisors (see below), whose sum is σ = 7410977280. Its totient is φ = 788584320.

The previous prime is 2756389807. The next prime is 2756389819. The reversal of 2756389812 is 2189836572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2756389819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 793303 + ... + 796769.

It is an arithmetic number, because the mean of its divisors is an integer number (77197680).

Almost surely, 2^2756389812 is an apocalyptic number.

2756389812 is a gapful number since it is divisible by the number (22) 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 2756389812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3705488640).

2756389812 is an abundant number, since it is smaller than the sum of its proper divisors (4654587468).

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

2756389812 is a wasteful number, since it uses less digits than its factorization.

2756389812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821 (or 3819 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 2756389812 is about 52501.3315259718. The cubic root of 2756389812 is about 1402.1039474470.

The spelling of 2756389812 in words is "two billion, seven hundred fifty-six million, three hundred eighty-nine thousand, eight hundred twelve".