730872318409 has 2 divisors, whose sum is σ = 730872318410. Its totient is φ = 730872318408.

The previous prime is 730872318403. The next prime is 730872318419. The reversal of 730872318409 is 904813278037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667075662009 + 63796656400 = 816747^2 + 252580^2 .

It is an emirp because it is prime and its reverse (904813278037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730872318409 - 2¹⁵ = 730872285641 is a prime.

It is not a weakly prime, because it can be changed into another prime (730872318403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365436159204 + 365436159205.

It is an arithmetic number, because the mean of its divisors is an integer number (365436159205).

Almost surely, 2^730872318409 is an apocalyptic number.

It is an amenable number.

730872318409 is a deficient number, since it is larger than the sum of its proper divisors (1).

730872318409 is an equidigital number, since it uses as much as digits as its factorization.

730872318409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 730872318409 in words is "seven hundred thirty billion, eight hundred seventy-two million, three hundred eighteen thousand, four hundred nine".