638067767167 has 8 divisors (see below), whose sum is σ = 641806261632. Its totient is φ = 634337410200.

The previous prime is 638067767131. The next prime is 638067767179. The reversal of 638067767167 is 761767760836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 638067767167 - 2¹⁵ = 638067734399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 638067767099 and 638067767108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (638067761167) 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, 1877059 + ... + 2190772.

It is an arithmetic number, because the mean of its divisors is an integer number (80225782704).

Almost surely, 2^638067767167 is an apocalyptic number.

638067767167 is a deficient number, since it is larger than the sum of its proper divisors (3738494465).

638067767167 is a wasteful number, since it uses less digits than its factorization.

638067767167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4068749.

The product of its (nonzero) digits is 74680704, while the sum is 64.

The spelling of 638067767167 in words is "six hundred thirty-eight billion, sixty-seven million, seven hundred sixty-seven thousand, one hundred sixty-seven".