42516404102 has 4 divisors (see below), whose sum is σ = 63774606156. Its totient is φ = 21258202050.

The previous prime is 42516404087. The next prime is 42516404123. The reversal of 42516404102 is 20140461524.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10629101024 + ... + 10629101027.

It is an arithmetic number, because the mean of its divisors is an integer number (15943651539).

Almost surely, 2^42516404102 is an apocalyptic number.

42516404102 is a deficient number, since it is larger than the sum of its proper divisors (21258202054).

42516404102 is a wasteful number, since it uses less digits than its factorization.

42516404102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21258202053.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 42516404102 its reverse (20140461524), we get a palindrome (62656865626).

The spelling of 42516404102 in words is "forty-two billion, five hundred sixteen million, four hundred four thousand, one hundred two".