63044544313 has 2 divisors, whose sum is σ = 63044544314. Its totient is φ = 63044544312.

The previous prime is 63044544293. The next prime is 63044544331. The reversal of 63044544313 is 31344544036.

Together with next prime (63044544331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63042672889 + 1871424 = 251083^2 + 1368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63044544313 is a prime.

It is a super-2 number, since 2×63044544313² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63044544373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31522272156 + 31522272157.

It is an arithmetic number, because the mean of its divisors is an integer number (31522272157).

Almost surely, 2^63044544313 is an apocalyptic number.

It is an amenable number.

63044544313 is a deficient number, since it is larger than the sum of its proper divisors (1).

63044544313 is an equidigital number, since it uses as much as digits as its factorization.

63044544313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 63044544313 in words is "sixty-three billion, forty-four million, five hundred forty-four thousand, three hundred thirteen".