639167104463 has 4 divisors (see below), whose sum is σ = 639868715808. Its totient is φ = 638465493120.

The previous prime is 639167104453. The next prime is 639167104501. The reversal of 639167104463 is 364401761936.

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 639167104463 - 2⁶ = 639167104399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (639167104453) 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, 350804306 + ... + 350806127.

It is an arithmetic number, because the mean of its divisors is an integer number (159967178952).

Almost surely, 2^639167104463 is an apocalyptic number.

639167104463 is a deficient number, since it is larger than the sum of its proper divisors (701611345).

639167104463 is an equidigital number, since it uses as much as digits as its factorization.

639167104463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701611344.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 639167104463 in words is "six hundred thirty-nine billion, one hundred sixty-seven million, one hundred four thousand, four hundred sixty-three".