728798290553 has 2 divisors, whose sum is σ = 728798290554. Its totient is φ = 728798290552.

The previous prime is 728798290523. The next prime is 728798290613. The reversal of 728798290553 is 355092897827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463586680384 + 265211610169 = 680872^2 + 514987^2 .

It is an emirp because it is prime and its reverse (355092897827) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728798290553 is a prime.

It is a super-2 number, since 2×728798290553² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 728798290553.

It is not a weakly prime, because it can be changed into another prime (728798290523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364399145276 + 364399145277.

It is an arithmetic number, because the mean of its divisors is an integer number (364399145277).

Almost surely, 2^728798290553 is an apocalyptic number.

It is an amenable number.

728798290553 is a deficient number, since it is larger than the sum of its proper divisors (1).

728798290553 is an equidigital number, since it uses as much as digits as its factorization.

728798290553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 728798290553 in words is "seven hundred twenty-eight billion, seven hundred ninety-eight million, two hundred ninety thousand, five hundred fifty-three".