2732389081 has 2 divisors, whose sum is σ = 2732389082. Its totient is φ = 2732389080.

The previous prime is 2732389067. The next prime is 2732389091. The reversal of 2732389081 is 1809832372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1450391056 + 1281998025 = 38084^2 + 35805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2732389081 is a prime.

It is a super-2 number, since 2×2732389081² = 14931900179936049122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2732389091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366194540 + 1366194541.

It is an arithmetic number, because the mean of its divisors is an integer number (1366194541).

Almost surely, 2^2732389081 is an apocalyptic number.

It is an amenable number.

2732389081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732389081 is an equidigital number, since it uses as much as digits as its factorization.

2732389081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2732389081 is about 52272.2591916592. The cubic root of 2732389081 is about 1398.0225621835.

The spelling of 2732389081 in words is "two billion, seven hundred thirty-two million, three hundred eighty-nine thousand, eighty-one".