63348731749 has 2 divisors, whose sum is σ = 63348731750. Its totient is φ = 63348731748.

The previous prime is 63348731737. The next prime is 63348731759. The reversal of 63348731749 is 94713784336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47825316100 + 15523415649 = 218690^2 + 124593^2 .

It is a cyclic number.

It is not a de Polignac number, because 63348731749 - 2¹¹ = 63348729701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63348731749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63348731729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31674365874 + 31674365875.

It is an arithmetic number, because the mean of its divisors is an integer number (31674365875).

Almost surely, 2^63348731749 is an apocalyptic number.

It is an amenable number.

63348731749 is a deficient number, since it is larger than the sum of its proper divisors (1).

63348731749 is an equidigital number, since it uses as much as digits as its factorization.

63348731749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 55.

The spelling of 63348731749 in words is "sixty-three billion, three hundred forty-eight million, seven hundred thirty-one thousand, seven hundred forty-nine".