63647567875 has 8 divisors (see below), whose sum is σ = 79432164864. Its totient is φ = 50918054200.

The previous prime is 63647567873. The next prime is 63647567891. The reversal of 63647567875 is 57876574636.

It is not a de Polignac number, because 63647567875 - 2¹ = 63647567873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63647567873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254590147 + ... + 254590396.

It is an arithmetic number, because the mean of its divisors is an integer number (9929020608).

Almost surely, 2^63647567875 is an apocalyptic number.

63647567875 is a deficient number, since it is larger than the sum of its proper divisors (15784596989).

63647567875 is an equidigital number, since it uses as much as digits as its factorization.

63647567875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509180558 (or 509180548 counting only the distinct ones).

The product of its digits is 177811200, while the sum is 64.

The spelling of 63647567875 in words is "sixty-three billion, six hundred forty-seven million, five hundred sixty-seven thousand, eight hundred seventy-five".