5642422168894 has 32 divisors (see below), whose sum is σ = 10013619038400. Its totient is φ = 2333079651840.

The previous prime is 5642422168861. The next prime is 5642422168939. The reversal of 5642422168894 is 4988612242465.

It is a happy number.

It is a super-2 number, since 2×5642422168894² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4553089 + ... + 5658220.

It is an arithmetic number, because the mean of its divisors is an integer number (312925594950).

Almost surely, 2^{5642422168894} is an apocalyptic number.

5642422168894 is a deficient number, since it is larger than the sum of its proper divisors (4371196869506).

5642422168894 is a wasteful number, since it uses less digits than its factorization.

5642422168894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10212708.

The product of its digits is 53084160, while the sum is 61.

The spelling of 5642422168894 in words is "five trillion, six hundred forty-two billion, four hundred twenty-two million, one hundred sixty-eight thousand, eight hundred ninety-four".