642242113234 has 16 divisors (see below), whose sum is σ = 1014771283200. Its totient is φ = 304008511824.

The previous prime is 642242113231. The next prime is 642242113241. The reversal of 642242113234 is 432311242246.

642242113234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×642242113234² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 642242113234.

It is not an unprimeable number, because it can be changed into a prime (642242113231) 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, 5817837 + ... + 5927200.

It is an arithmetic number, because the mean of its divisors is an integer number (63423205200).

Almost surely, 2^642242113234 is an apocalyptic number.

642242113234 is a deficient number, since it is larger than the sum of its proper divisors (372529169966).

642242113234 is a wasteful number, since it uses less digits than its factorization.

642242113234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11746497.

The product of its digits is 55296, while the sum is 34.

The spelling of 642242113234 in words is "six hundred forty-two billion, two hundred forty-two million, one hundred thirteen thousand, two hundred thirty-four".