2751138881 has 2 divisors, whose sum is σ = 2751138882. Its totient is φ = 2751138880.

The previous prime is 2751138779. The next prime is 2751138919. The reversal of 2751138881 is 1888311572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2302080400 + 449058481 = 47980^2 + 21191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2751138881 is a prime.

It is a super-2 number, since 2×2751138881² = 15137530285099864322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2751138281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375569440 + 1375569441.

It is an arithmetic number, because the mean of its divisors is an integer number (1375569441).

Almost surely, 2^2751138881 is an apocalyptic number.

It is an amenable number.

2751138881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2751138881 is an equidigital number, since it uses as much as digits as its factorization.

2751138881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 44.

The square root of 2751138881 is about 52451.3000887490. The cubic root of 2751138881 is about 1401.2130440504.

The spelling of 2751138881 in words is "two billion, seven hundred fifty-one million, one hundred thirty-eight thousand, eight hundred eighty-one".