730015952309 has 12 divisors (see below), whose sum is σ = 849247987500. Its totient is φ = 625694243328.

The previous prime is 730015952293. The next prime is 730015952363. The reversal of 730015952309 is 903259510037.

It can be written as a sum of positive squares in 2 ways, for example, as 432503522500 + 297512429809 = 657650^2 + 545447^2 .

It is not a de Polignac number, because 730015952309 - 2⁴ = 730015952293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 730015952309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730015952209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539567 + ... + 1323315.

It is an arithmetic number, because the mean of its divisors is an integer number (70770665625).

Almost surely, 2^730015952309 is an apocalyptic number.

It is an amenable number.

730015952309 is a deficient number, since it is larger than the sum of its proper divisors (119232035191).

730015952309 is a wasteful number, since it uses less digits than its factorization.

730015952309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802772 (or 802765 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 44.

The spelling of 730015952309 in words is "seven hundred thirty billion, fifteen million, nine hundred fifty-two thousand, three hundred nine".