642380562106 has 8 divisors (see below), whose sum is σ = 963594640800. Its totient is φ = 321182348508.

The previous prime is 642380562101. The next prime is 642380562133. The reversal of 642380562106 is 601265083246.

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

It is not an unprimeable number, because it can be changed into a prime (642380562101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3864526 + ... + 4027321.

It is an arithmetic number, because the mean of its divisors is an integer number (120449330100).

Almost surely, 2^642380562106 is an apocalyptic number.

642380562106 is a deficient number, since it is larger than the sum of its proper divisors (321214078694).

642380562106 is a wasteful number, since it uses less digits than its factorization.

642380562106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7932548.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 642380562106 in words is "six hundred forty-two billion, three hundred eighty million, five hundred sixty-two thousand, one hundred six".