63852385673 has 4 divisors (see below), whose sum is σ = 63864062208. Its totient is φ = 63840709140.

The previous prime is 63852385613. The next prime is 63852385691. The reversal of 63852385673 is 37658325836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63852385673 - 2¹⁶ = 63852320137 is a prime.

It is a super-2 number, since 2×63852385673² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63852385603) 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, 5830061 + ... + 5841002.

It is an arithmetic number, because the mean of its divisors is an integer number (15966015552).

Almost surely, 2^63852385673 is an apocalyptic number.

It is an amenable number.

63852385673 is a deficient number, since it is larger than the sum of its proper divisors (11676535).

63852385673 is a wasteful number, since it uses less digits than its factorization.

63852385673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11676534.

The product of its digits is 21772800, while the sum is 56.

The spelling of 63852385673 in words is "sixty-three billion, eight hundred fifty-two million, three hundred eighty-five thousand, six hundred seventy-three".