63640650301 has 2 divisors, whose sum is σ = 63640650302. Its totient is φ = 63640650300.

The previous prime is 63640650299. The next prime is 63640650319. The reversal of 63640650301 is 10305604636.

63640650301 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., 61903928025 + 1736722276 = 248805^2 + 41674^2 .

It is a cyclic number.

It is not a de Polignac number, because 63640650301 - 2¹ = 63640650299 is a prime.

It is a super-4 number, since 4×63640650301⁴ (a number of 44 digits) contains 4444 as substring.

Together with 63640650299, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63640650371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31820325150 + 31820325151.

It is an arithmetic number, because the mean of its divisors is an integer number (31820325151).

Almost surely, 2^63640650301 is an apocalyptic number.

It is an amenable number.

63640650301 is a deficient number, since it is larger than the sum of its proper divisors (1).

63640650301 is an equidigital number, since it uses as much as digits as its factorization.

63640650301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 63640650301 in words is "sixty-three billion, six hundred forty million, six hundred fifty thousand, three hundred one".