730015952209 has 2 divisors, whose sum is σ = 730015952210. Its totient is φ = 730015952208.

The previous prime is 730015952203. The next prime is 730015952219. The reversal of 730015952209 is 902259510037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634316673600 + 95699278609 = 796440^2 + 309353^2 .

It is a cyclic number.

It is not a de Polignac number, because 730015952209 - 2¹⁵ = 730015919441 is a prime.

It is a super-2 number, since 2×730015952209² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (730015952203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365007976104 + 365007976105.

It is an arithmetic number, because the mean of its divisors is an integer number (365007976105).

Almost surely, 2^730015952209 is an apocalyptic number.

It is an amenable number.

730015952209 is a deficient number, since it is larger than the sum of its proper divisors (1).

730015952209 is an equidigital number, since it uses as much as digits as its factorization.

730015952209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 730015952209 in words is "seven hundred thirty billion, fifteen million, nine hundred fifty-two thousand, two hundred nine".