2731640029 has 2 divisors, whose sum is σ = 2731640030. Its totient is φ = 2731640028.

The previous prime is 2731639993. The next prime is 2731640039. The reversal of 2731640029 is 9200461372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2665656900 + 65983129 = 51630^2 + 8123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731640029 - 2¹⁹ = 2731115741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2731639976 and 2731640003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2731640039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365820014 + 1365820015.

It is an arithmetic number, because the mean of its divisors is an integer number (1365820015).

Almost surely, 2^2731640029 is an apocalyptic number.

It is an amenable number.

2731640029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731640029 is an equidigital number, since it uses as much as digits as its factorization.

2731640029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 2731640029 is about 52265.0937911719. The cubic root of 2731640029 is about 1397.8948000833.

The spelling of 2731640029 in words is "two billion, seven hundred thirty-one million, six hundred forty thousand, twenty-nine".