42518191304 has 8 divisors (see below), whose sum is σ = 79721608710. Its totient is φ = 21259095648.

The previous prime is 42518191271. The next prime is 42518191403. The reversal of 42518191304 is 40319181524.

It can be written as a sum of positive squares in only one way, i.e., 35044588804 + 7473602500 = 187202^2 + 86450^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2657386949 + ... + 2657386964.

Almost surely, 2^42518191304 is an apocalyptic number.

It is an amenable number.

42518191304 is a deficient number, since it is larger than the sum of its proper divisors (37203417406).

42518191304 is a wasteful number, since it uses less digits than its factorization.

42518191304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314773919 (or 5314773915 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 42518191304 in words is "forty-two billion, five hundred eighteen million, one hundred ninety-one thousand, three hundred four".