2734441981 has 4 divisors (see below), whose sum is σ = 2878360000. Its totient is φ = 2590523964.

The previous prime is 2734441973. The next prime is 2734442023. The reversal of 2734441981 is 1891444372.

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 2734441981 - 2³ = 2734441973 is a prime.

It is a super-2 number, since 2×2734441981² = 14954345894910408722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2734441901) 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, 71958981 + ... + 71959018.

It is an arithmetic number, because the mean of its divisors is an integer number (719590000).

Almost surely, 2^2734441981 is an apocalyptic number.

It is an amenable number.

2734441981 is a deficient number, since it is larger than the sum of its proper divisors (143918019).

2734441981 is a wasteful number, since it uses less digits than its factorization.

2734441981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143918018.

The product of its digits is 193536, while the sum is 43.

The square root of 2734441981 is about 52291.8921153175. The cubic root of 2734441981 is about 1398.3725955510.

The spelling of 2734441981 in words is "two billion, seven hundred thirty-four million, four hundred forty-one thousand, nine hundred eighty-one".