63642302305 has 16 divisors (see below), whose sum is σ = 78213247488. Its totient is φ = 49699720000.

The previous prime is 63642302299. The next prime is 63642302323. The reversal of 63642302305 is 50320324636.

63642302305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-63642302305 is a prime.

It is a Duffinian 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, 851641 + ... + 923350.

It is an arithmetic number, because the mean of its divisors is an integer number (4888327968).

Almost surely, 2^63642302305 is an apocalyptic number.

It is an amenable number.

63642302305 is a deficient number, since it is larger than the sum of its proper divisors (14570945183).

63642302305 is a wasteful number, since it uses less digits than its factorization.

63642302305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775168.

The product of its (nonzero) digits is 77760, while the sum is 34.

The spelling of 63642302305 in words is "sixty-three billion, six hundred forty-two million, three hundred two thousand, three hundred five".