63121068463 has 4 divisors (see below), whose sum is σ = 65865462768. Its totient is φ = 60376674160.

The previous prime is 63121068419. The next prime is 63121068473. The reversal of 63121068463 is 36486012136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63121068463 - 2⁹ = 63121067951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63121068473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372197118 + ... + 1372197163.

It is an arithmetic number, because the mean of its divisors is an integer number (16466365692).

Almost surely, 2^63121068463 is an apocalyptic number.

63121068463 is a deficient number, since it is larger than the sum of its proper divisors (2744394305).

63121068463 is a wasteful number, since it uses less digits than its factorization.

63121068463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744394304.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 63121068463 in words is "sixty-three billion, one hundred twenty-one million, sixty-eight thousand, four hundred sixty-three".