728611270357 has 2 divisors, whose sum is σ = 728611270358. Its totient is φ = 728611270356.

The previous prime is 728611270187. The next prime is 728611270393. The reversal of 728611270357 is 753072116827.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 631645047121 + 96966223236 = 794761^2 + 311394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728611270357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728611270357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728611270397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364305635178 + 364305635179.

It is an arithmetic number, because the mean of its divisors is an integer number (364305635179).

Almost surely, 2^728611270357 is an apocalyptic number.

It is an amenable number.

728611270357 is a deficient number, since it is larger than the sum of its proper divisors (1).

728611270357 is an equidigital number, since it uses as much as digits as its factorization.

728611270357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 728611270357 in words is "seven hundred twenty-eight billion, six hundred eleven million, two hundred seventy thousand, three hundred fifty-seven".