2748719081 has 4 divisors (see below), whose sum is σ = 2795307600. Its totient is φ = 2702130564.

The previous prime is 2748719053. The next prime is 2748719087. The reversal of 2748719081 is 1809178472.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2748719081 - 2²² = 2744524777 is a prime.

It is a super-2 number, since 2×2748719081² = 15110913172506969122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748719087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23294171 + ... + 23294288.

It is an arithmetic number, because the mean of its divisors is an integer number (698826900).

Almost surely, 2^2748719081 is an apocalyptic number.

It is an amenable number.

2748719081 is a deficient number, since it is larger than the sum of its proper divisors (46588519).

2748719081 is an equidigital number, since it uses as much as digits as its factorization.

2748719081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46588518.

The product of its (nonzero) digits is 225792, while the sum is 47.

The square root of 2748719081 is about 52428.2279025336. The cubic root of 2748719081 is about 1400.8021051562.

The spelling of 2748719081 in words is "two billion, seven hundred forty-eight million, seven hundred nineteen thousand, eighty-one".