63857606047 has 4 divisors (see below), whose sum is σ = 63859752880. Its totient is φ = 63855459216.

The previous prime is 63857606009. The next prime is 63857606051. The reversal of 63857606047 is 74060675836.

It is a happy number.

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 63857606047 - 2¹⁵ = 63857573279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63857605985 and 63857606003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63857600047) 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, 1028163 + ... + 1088500.

It is an arithmetic number, because the mean of its divisors is an integer number (15964938220).

Almost surely, 2^63857606047 is an apocalyptic number.

63857606047 is a deficient number, since it is larger than the sum of its proper divisors (2146833).

63857606047 is a wasteful number, since it uses less digits than its factorization.

63857606047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146832.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 63857606047 in words is "sixty-three billion, eight hundred fifty-seven million, six hundred six thousand, forty-seven".