728311152473 has 2 divisors, whose sum is σ = 728311152474. Its totient is φ = 728311152472.

The previous prime is 728311152367. The next prime is 728311152479. The reversal of 728311152473 is 374251113827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514486294729 + 213824857744 = 717277^2 + 462412^2 .

It is a cyclic number.

It is not a de Polignac number, because 728311152473 - 2³² = 724016185177 is a prime.

It is not a weakly prime, because it can be changed into another prime (728311152479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364155576236 + 364155576237.

It is an arithmetic number, because the mean of its divisors is an integer number (364155576237).

Almost surely, 2^728311152473 is an apocalyptic number.

It is an amenable number.

728311152473 is a deficient number, since it is larger than the sum of its proper divisors (1).

728311152473 is an equidigital number, since it uses as much as digits as its factorization.

728311152473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 44.

The spelling of 728311152473 in words is "seven hundred twenty-eight billion, three hundred eleven million, one hundred fifty-two thousand, four hundred seventy-three".