63695407823 has 2 divisors, whose sum is σ = 63695407824. Its totient is φ = 63695407822.

The previous prime is 63695407819. The next prime is 63695407859. The reversal of 63695407823 is 32870459636.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63695407823 - 2² = 63695407819 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63695407873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31847703911 + 31847703912.

It is an arithmetic number, because the mean of its divisors is an integer number (31847703912).

Almost surely, 2^63695407823 is an apocalyptic number.

63695407823 is a deficient number, since it is larger than the sum of its proper divisors (1).

63695407823 is an equidigital number, since it uses as much as digits as its factorization.

63695407823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 63695407823 in words is "sixty-three billion, six hundred ninety-five million, four hundred seven thousand, eight hundred twenty-three".