2743418981 has 2 divisors, whose sum is σ = 2743418982. Its totient is φ = 2743418980.

The previous prime is 2743418971. The next prime is 2743419011. The reversal of 2743418981 is 1898143472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2742197956 + 1221025 = 52366^2 + 1105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2743418981 is a prime.

It is a super-2 number, since 2×2743418981² = 15052695410622156722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2743418971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371709490 + 1371709491.

It is an arithmetic number, because the mean of its divisors is an integer number (1371709491).

Almost surely, 2^2743418981 is an apocalyptic number.

It is an amenable number.

2743418981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2743418981 is an equidigital number, since it uses as much as digits as its factorization.

2743418981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 47.

The square root of 2743418981 is about 52377.6572691066. The cubic root of 2743418981 is about 1399.9011802698.

The spelling of 2743418981 in words is "two billion, seven hundred forty-three million, four hundred eighteen thousand, nine hundred eighty-one".