6963728749 has 2 divisors, whose sum is σ = 6963728750. Its totient is φ = 6963728748.

The previous prime is 6963728731. The next prime is 6963728771. The reversal of 6963728749 is 9478273696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5248278025 + 1715450724 = 72445^2 + 41418^2 .

It is a cyclic number.

It is not a de Polignac number, because 6963728749 - 2¹¹ = 6963726701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6963728719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3481864374 + 3481864375.

It is an arithmetic number, because the mean of its divisors is an integer number (3481864375).

Almost surely, 2^6963728749 is an apocalyptic number.

It is an amenable number.

6963728749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6963728749 is an equidigital number, since it uses as much as digits as its factorization.

6963728749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 61.

The square root of 6963728749 is about 83448.9589449743. The cubic root of 6963728749 is about 1909.6214401928.

The spelling of 6963728749 in words is "six billion, nine hundred sixty-three million, seven hundred twenty-eight thousand, seven hundred forty-nine".