63439713055 has 16 divisors (see below), whose sum is σ = 76253841504. Its totient is φ = 50667724800.

The previous prime is 63439713049. The next prime is 63439713079. The reversal of 63439713055 is 55031793436.

It is not a de Polignac number, because 63439713055 - 2³ = 63439713047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63439712996 and 63439713014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8986087 + ... + 8993143.

It is an arithmetic number, because the mean of its divisors is an integer number (4765865094).

Almost surely, 2^63439713055 is an apocalyptic number.

63439713055 is a deficient number, since it is larger than the sum of its proper divisors (12814128449).

63439713055 is a wasteful number, since it uses less digits than its factorization.

63439713055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9786.

The product of its (nonzero) digits is 1020600, while the sum is 46.

The spelling of 63439713055 in words is "sixty-three billion, four hundred thirty-nine million, seven hundred thirteen thousand, fifty-five".