729870851053 has 2 divisors, whose sum is σ = 729870851054. Its totient is φ = 729870851052.

The previous prime is 729870851033. The next prime is 729870851063. The reversal of 729870851053 is 350158078927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455978768644 + 273892082409 = 675262^2 + 523347^2 .

It is an emirp because it is prime and its reverse (350158078927) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729870851053 is a prime.

It is a super-2 number, since 2×729870851053² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 729870850985 and 729870851003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729870851033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364935425526 + 364935425527.

It is an arithmetic number, because the mean of its divisors is an integer number (364935425527).

Almost surely, 2^729870851053 is an apocalyptic number.

It is an amenable number.

729870851053 is a deficient number, since it is larger than the sum of its proper divisors (1).

729870851053 is an equidigital number, since it uses as much as digits as its factorization.

729870851053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 55.

The spelling of 729870851053 in words is "seven hundred twenty-nine billion, eight hundred seventy million, eight hundred fifty-one thousand, fifty-three".