63729314953 has 2 divisors, whose sum is σ = 63729314954. Its totient is φ = 63729314952.

The previous prime is 63729314951. The next prime is 63729314983. The reversal of 63729314953 is 35941392736.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50680365129 + 13048949824 = 225123^2 + 114232^2 .

It is a cyclic number.

It is not a de Polignac number, because 63729314953 - 2¹ = 63729314951 is a prime.

It is a super-2 number, since 2×63729314953² (a number of 22 digits) contains 22 as substring.

Together with 63729314951, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 63729314953.

It is not a weakly prime, because it can be changed into another prime (63729314951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31864657476 + 31864657477.

It is an arithmetic number, because the mean of its divisors is an integer number (31864657477).

Almost surely, 2^63729314953 is an apocalyptic number.

It is an amenable number.

63729314953 is a deficient number, since it is larger than the sum of its proper divisors (1).

63729314953 is an equidigital number, since it uses as much as digits as its factorization.

63729314953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 52.

The spelling of 63729314953 in words is "sixty-three billion, seven hundred twenty-nine million, three hundred fourteen thousand, nine hundred fifty-three".