63872983857 has 16 divisors (see below), whose sum is σ = 88572880640. Its totient is φ = 40906674432.

The previous prime is 63872983787. The next prime is 63872983859. The reversal of 63872983857 is 75838927836.

63872983857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63872983857 - 2¹⁶ = 63872918321 is a prime.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63872983859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3633208 + ... + 3650745.

It is an arithmetic number, because the mean of its divisors is an integer number (5535805040).

Almost surely, 2^63872983857 is an apocalyptic number.

It is an amenable number.

63872983857 is a deficient number, since it is larger than the sum of its proper divisors (24699896783).

63872983857 is a wasteful number, since it uses less digits than its factorization.

63872983857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7284072.

The product of its digits is 121927680, while the sum is 66.

The spelling of 63872983857 in words is "sixty-three billion, eight hundred seventy-two million, nine hundred eighty-three thousand, eight hundred fifty-seven".