42102345204 has 72 divisors (see below), whose sum is σ = 112710212160. Its totient is φ = 13223561472.

The previous prime is 42102345179. The next prime is 42102345209. The reversal of 42102345204 is 40254320124.

42102345204 is a `hidden beast` number, since 4 + 2 + 102 + 34 + 520 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102345209) 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 23 ways as a sum of consecutive naturals, for example, 323989 + ... + 434940.

Almost surely, 2^42102345204 is an apocalyptic number.

It is an amenable number.

42102345204 is an abundant number, since it is smaller than the sum of its proper divisors (70607866956).

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

42102345204 is a wasteful number, since it uses less digits than its factorization.

42102345204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759029 (or 759024 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 42102345204 its reverse (40254320124), we get a palindrome (82356665328).

The spelling of 42102345204 in words is "forty-two billion, one hundred two million, three hundred forty-five thousand, two hundred four".