2742996881 has 4 divisors (see below), whose sum is σ = 2768162100. Its totient is φ = 2717831664.

The previous prime is 2742996863. The next prime is 2742996923. The reversal of 2742996881 is 1886992472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2478446656 + 264550225 = 49784^2 + 16265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2742996881 - 2¹⁸ = 2742734737 is a prime.

It is a super-2 number, since 2×2742996881² = 15048063778351456322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2742996181) 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, 12582446 + ... + 12582663.

It is an arithmetic number, because the mean of its divisors is an integer number (692040525).

Almost surely, 2^2742996881 is an apocalyptic number.

It is an amenable number.

2742996881 is a deficient number, since it is larger than the sum of its proper divisors (25165219).

2742996881 is a wasteful number, since it uses less digits than its factorization.

2742996881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25165218.

The product of its digits is 3483648, while the sum is 56.

The square root of 2742996881 is about 52373.6277242660. The cubic root of 2742996881 is about 1399.8293807379.

The spelling of 2742996881 in words is "two billion, seven hundred forty-two million, nine hundred ninety-six thousand, eight hundred eighty-one".