63323332549 has 2 divisors, whose sum is σ = 63323332550. Its totient is φ = 63323332548.

The previous prime is 63323332547. The next prime is 63323332571. The reversal of 63323332549 is 94523332336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61017892324 + 2305440225 = 247018^2 + 48015^2 .

It is a cyclic number.

It is not a de Polignac number, because 63323332549 - 2¹ = 63323332547 is a prime.

It is a super-2 number, since 2×63323332549² (a number of 22 digits) contains 22 as substring.

Together with 63323332547, 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 (63323332543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31661666274 + 31661666275.

It is an arithmetic number, because the mean of its divisors is an integer number (31661666275).

Almost surely, 2^63323332549 is an apocalyptic number.

It is an amenable number.

63323332549 is a deficient number, since it is larger than the sum of its proper divisors (1).

63323332549 is an equidigital number, since it uses as much as digits as its factorization.

63323332549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 43.

The spelling of 63323332549 in words is "sixty-three billion, three hundred twenty-three million, three hundred thirty-two thousand, five hundred forty-nine".