63629382857 has 4 divisors (see below), whose sum is σ = 64672487556. Its totient is φ = 62586278160.

The previous prime is 63629382823. The next prime is 63629382899. The reversal of 63629382857 is 75828392636.

63629382857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 6918246976 + 56711135881 = 83176^2 + 238141^2 .

It is not a de Polignac number, because 63629382857 - 2¹⁰ = 63629381833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63629382796 and 63629382805.

It is not an unprimeable number, because it can be changed into a prime (63629382457) 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, 521552258 + ... + 521552379.

It is an arithmetic number, because the mean of its divisors is an integer number (16168121889).

Almost surely, 2^63629382857 is an apocalyptic number.

It is an amenable number.

63629382857 is a deficient number, since it is larger than the sum of its proper divisors (1043104699).

63629382857 is a wasteful number, since it uses less digits than its factorization.

63629382857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043104698.

The product of its digits is 26127360, while the sum is 59.

The spelling of 63629382857 in words is "sixty-three billion, six hundred twenty-nine million, three hundred eighty-two thousand, eight hundred fifty-seven".