63979030697 has 2 divisors, whose sum is σ = 63979030698. Its totient is φ = 63979030696.

The previous prime is 63979030691. The next prime is 63979030757. The reversal of 63979030697 is 79603097936.

63979030697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61710509056 + 2268521641 = 248416^2 + 47629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63979030697 is a prime.

It is not a weakly prime, because it can be changed into another prime (63979030691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31989515348 + 31989515349.

It is an arithmetic number, because the mean of its divisors is an integer number (31989515349).

Almost surely, 2^63979030697 is an apocalyptic number.

It is an amenable number.

63979030697 is a deficient number, since it is larger than the sum of its proper divisors (1).

63979030697 is an equidigital number, since it uses as much as digits as its factorization.

63979030697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11573604, while the sum is 59.

The spelling of 63979030697 in words is "sixty-three billion, nine hundred seventy-nine million, thirty thousand, six hundred ninety-seven".