642452234054 has 16 divisors (see below), whose sum is σ = 970198553520. Its totient is φ = 319056925920.

The previous prime is 642452234051. The next prime is 642452234111. The reversal of 642452234054 is 450432254246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642452234051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746537 + ... + 1357284.

It is an arithmetic number, because the mean of its divisors is an integer number (60637409595).

Almost surely, 2^642452234054 is an apocalyptic number.

642452234054 is a deficient number, since it is larger than the sum of its proper divisors (327746319466).

642452234054 is a wasteful number, since it uses less digits than its factorization.

642452234054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104855.

The product of its (nonzero) digits is 921600, while the sum is 41.

The spelling of 642452234054 in words is "six hundred forty-two billion, four hundred fifty-two million, two hundred thirty-four thousand, fifty-four".