730368507457 has 4 divisors (see below), whose sum is σ = 730385235076. Its totient is φ = 730351779840.

The previous prime is 730368507403. The next prime is 730368507469. The reversal of 730368507457 is 754705863037.

It is a happy number.

730368507457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 854616²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17544591936 + 712823915521 = 132456^2 + 844289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730368507457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730368507398 and 730368507407.

It is not an unprimeable number, because it can be changed into a prime (730368507487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8298144 + ... + 8385697.

It is an arithmetic number, because the mean of its divisors is an integer number (182596308769).

Almost surely, 2^730368507457 is an apocalyptic number.

It is an amenable number.

730368507457 is a deficient number, since it is larger than the sum of its proper divisors (16727619).

730368507457 is a wasteful number, since it uses less digits than its factorization.

730368507457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16727618.

The product of its (nonzero) digits is 14817600, while the sum is 55.

The spelling of 730368507457 in words is "seven hundred thirty billion, three hundred sixty-eight million, five hundred seven thousand, four hundred fifty-seven".