63396189797 has 2 divisors, whose sum is σ = 63396189798. Its totient is φ = 63396189796.

The previous prime is 63396189757. The next prime is 63396189803. The reversal of 63396189797 is 79798169336.

It is a happy number.

63396189797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 251786²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63396189796 + 1 = 251786^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 63396189797 - 2⁶ = 63396189733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63396189757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31698094898 + 31698094899.

It is an arithmetic number, because the mean of its divisors is an integer number (31698094899).

Almost surely, 2^63396189797 is an apocalyptic number.

It is an amenable number.

63396189797 is a deficient number, since it is larger than the sum of its proper divisors (1).

63396189797 is an equidigital number, since it uses as much as digits as its factorization.

63396189797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92588832, while the sum is 68.

The spelling of 63396189797 in words is "sixty-three billion, three hundred ninety-six million, one hundred eighty-nine thousand, seven hundred ninety-seven".