642232468167 has 8 divisors (see below), whose sum is σ = 872466749424. Its totient is φ = 420076582848.

The previous prime is 642232468151. The next prime is 642232468231. The reversal of 642232468167 is 761864232246.

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

It is not a de Polignac number, because 642232468167 - 2⁴ = 642232468151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642232468567) 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, 2019598798 + ... + 2019599115.

It is an arithmetic number, because the mean of its divisors is an integer number (109058343678).

Almost surely, 2^642232468167 is an apocalyptic number.

642232468167 is a deficient number, since it is larger than the sum of its proper divisors (230234281257).

642232468167 is a wasteful number, since it uses less digits than its factorization.

642232468167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039197969.

The product of its digits is 4644864, while the sum is 51.

The spelling of 642232468167 in words is "six hundred forty-two billion, two hundred thirty-two million, four hundred sixty-eight thousand, one hundred sixty-seven".