63685335047 has 4 divisors (see below), whose sum is σ = 63688287936. Its totient is φ = 63682382160.

The previous prime is 63685335031. The next prime is 63685335059. The reversal of 63685335047 is 74053358636.

63685335047 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 is a cyclic number.

It is not a de Polignac number, because 63685335047 - 2⁴ = 63685335031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63685334986 and 63685335004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63685334047) 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, 1443854 + ... + 1487307.

It is an arithmetic number, because the mean of its divisors is an integer number (15922071984).

Almost surely, 2^63685335047 is an apocalyptic number.

63685335047 is a deficient number, since it is larger than the sum of its proper divisors (2952889).

63685335047 is a wasteful number, since it uses less digits than its factorization.

63685335047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952888.

The product of its (nonzero) digits is 5443200, while the sum is 50.

The spelling of 63685335047 in words is "sixty-three billion, six hundred eighty-five million, three hundred thirty-five thousand, forty-seven".