63729263293 has 2 divisors, whose sum is σ = 63729263294. Its totient is φ = 63729263292.

The previous prime is 63729263263. The next prime is 63729263303. The reversal of 63729263293 is 39236292736.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49222747044 + 14506516249 = 221862^2 + 120443^2 .

It is a cyclic number.

It is not a de Polignac number, because 63729263293 - 2⁵ = 63729263261 is a prime.

It is a super-2 number, since 2×63729263293² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63729263293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63729263263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31864631646 + 31864631647.

It is an arithmetic number, because the mean of its divisors is an integer number (31864631647).

Almost surely, 2^63729263293 is an apocalyptic number.

It is an amenable number.

63729263293 is a deficient number, since it is larger than the sum of its proper divisors (1).

63729263293 is an equidigital number, since it uses as much as digits as its factorization.

63729263293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 52.

The spelling of 63729263293 in words is "sixty-three billion, seven hundred twenty-nine million, two hundred sixty-three thousand, two hundred ninety-three".