63315776305 has 4 divisors (see below), whose sum is σ = 75978931572. Its totient is φ = 50652621040.

The previous prime is 63315776269. The next prime is 63315776323. The reversal of 63315776305 is 50367751336.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18762698529 + 44553077776 = 136977^2 + 211076^2 .

It is not a de Polignac number, because 63315776305 - 2¹⁵ = 63315743537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6331577626 + ... + 6331577635.

It is an arithmetic number, because the mean of its divisors is an integer number (18994732893).

Almost surely, 2^63315776305 is an apocalyptic number.

It is an amenable number.

63315776305 is a deficient number, since it is larger than the sum of its proper divisors (12663155267).

63315776305 is a wasteful number, since it uses less digits than its factorization.

63315776305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12663155266.

The product of its (nonzero) digits is 1190700, while the sum is 46.

The spelling of 63315776305 in words is "sixty-three billion, three hundred fifteen million, seven hundred seventy-six thousand, three hundred five".