63895123421027 has 4 divisors (see below), whose sum is σ = 63895408255056. Its totient is φ = 63894838587000.

The previous prime is 63895123420897. The next prime is 63895123421137. The reversal of 63895123421027 is 72012432159836.

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 63895123421027 - 2⁸ = 63895123420771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63895123421027.

It is not an unprimeable number, because it can be changed into a prime (63895123421527) 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, 142080263 + ... + 142529264.

It is an arithmetic number, because the mean of its divisors is an integer number (15973852063764).

It is a 1-persistent number, because it is pandigital, but 2⋅63895123421027 = 127790246842054 is not.

Almost surely, 2^{63895123421027} is an apocalyptic number.

63895123421027 is a deficient number, since it is larger than the sum of its proper divisors (284834029).

63895123421027 is a wasteful number, since it uses less digits than its factorization.

63895123421027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284834028.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 63895123421027 in words is "sixty-three trillion, eight hundred ninety-five billion, one hundred twenty-three million, four hundred twenty-one thousand, twenty-seven".