642705003102 has 16 divisors (see below), whose sum is σ = 1285753835520. Its totient is φ = 214177696152.

The previous prime is 642705003089. The next prime is 642705003131. The reversal of 642705003102 is 201300507246.

It is a self number, because there is not a number n which added to its sum of digits gives 642705003102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14301918 + ... + 14346785.

It is an arithmetic number, because the mean of its divisors is an integer number (80359614720).

Almost surely, 2^642705003102 is an apocalyptic number.

642705003102 is an abundant number, since it is smaller than the sum of its proper divisors (643048832418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642705003102 is a wasteful number, since it uses less digits than its factorization.

642705003102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28652447.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 642705003102 in words is "six hundred forty-two billion, seven hundred five million, three thousand, one hundred two".