63428946941 has 2 divisors, whose sum is σ = 63428946942. Its totient is φ = 63428946940.

The previous prime is 63428946871. The next prime is 63428947003. The reversal of 63428946941 is 14964982436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56565487225 + 6863459716 = 237835^2 + 82846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63428946941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63428948941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31714473470 + 31714473471.

It is an arithmetic number, because the mean of its divisors is an integer number (31714473471).

Almost surely, 2^63428946941 is an apocalyptic number.

It is an amenable number.

63428946941 is a deficient number, since it is larger than the sum of its proper divisors (1).

63428946941 is an equidigital number, since it uses as much as digits as its factorization.

63428946941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 56.

The spelling of 63428946941 in words is "sixty-three billion, four hundred twenty-eight million, nine hundred forty-six thousand, nine hundred forty-one".