63243557065069 has 2 divisors, whose sum is σ = 63243557065070. Its totient is φ = 63243557065068.

The previous prime is 63243557065049. The next prime is 63243557065097. The reversal of 63243557065069 is 96056075534236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63020782504969 + 222774560100 = 7938563^2 + 471990^2 .

It is a cyclic number.

It is not a de Polignac number, because 63243557065069 - 2¹³ = 63243557056877 is a prime.

It is a super-2 number, since 2×63243557065069² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63243557064998 and 63243557065016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63243557065019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31621778532534 + 31621778532535.

It is an arithmetic number, because the mean of its divisors is an integer number (31621778532535).

Almost surely, 2^{63243557065069} is an apocalyptic number.

It is an amenable number.

63243557065069 is a deficient number, since it is larger than the sum of its proper divisors (1).

63243557065069 is an equidigital number, since it uses as much as digits as its factorization.

63243557065069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472000, while the sum is 61.

The spelling of 63243557065069 in words is "sixty-three trillion, two hundred forty-three billion, five hundred fifty-seven million, sixty-five thousand, sixty-nine".