63615512263 has 2 divisors, whose sum is σ = 63615512264. Its totient is φ = 63615512262.

The previous prime is 63615512243. The next prime is 63615512347. The reversal of 63615512263 is 36221551636.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63615512263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63615512243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31807756131 + 31807756132.

It is an arithmetic number, because the mean of its divisors is an integer number (31807756132).

Almost surely, 2^63615512263 is an apocalyptic number.

63615512263 is a deficient number, since it is larger than the sum of its proper divisors (1).

63615512263 is an equidigital number, since it uses as much as digits as its factorization.

63615512263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 40.

The spelling of 63615512263 in words is "sixty-three billion, six hundred fifteen million, five hundred twelve thousand, two hundred sixty-three".