2640518029 has 2 divisors, whose sum is σ = 2640518030. Its totient is φ = 2640518028.

The previous prime is 2640518009. The next prime is 2640518053. The reversal of 2640518029 is 9208150462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1347036804 + 1293481225 = 36702^2 + 35965^2 .

It is a cyclic number.

It is not a de Polignac number, because 2640518029 - 2²⁷ = 2506300301 is a prime.

It is a super-2 number, since 2×2640518029² = 13944670922948089682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640518009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320259014 + 1320259015.

It is an arithmetic number, because the mean of its divisors is an integer number (1320259015).

Almost surely, 2^2640518029 is an apocalyptic number.

It is an amenable number.

2640518029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640518029 is an equidigital number, since it uses as much as digits as its factorization.

2640518029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2640518029 is about 51385.9711302608. The cubic root of 2640518029 is about 1382.1750390708.

The spelling of 2640518029 in words is "two billion, six hundred forty million, five hundred eighteen thousand, twenty-nine".