728464821941 has 2 divisors, whose sum is σ = 728464821942. Its totient is φ = 728464821940.

The previous prime is 728464821937. The next prime is 728464821971. The reversal of 728464821941 is 149128464827.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 661409719441 + 67055102500 = 813271^2 + 258950^2 .

It is a cyclic number.

It is not a de Polignac number, because 728464821941 - 2² = 728464821937 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728464821901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364232410970 + 364232410971.

It is an arithmetic number, because the mean of its divisors is an integer number (364232410971).

Almost surely, 2^728464821941 is an apocalyptic number.

It is an amenable number.

728464821941 is a deficient number, since it is larger than the sum of its proper divisors (1).

728464821941 is an equidigital number, since it uses as much as digits as its factorization.

728464821941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6193152, while the sum is 56.

The spelling of 728464821941 in words is "seven hundred twenty-eight billion, four hundred sixty-four million, eight hundred twenty-one thousand, nine hundred forty-one".