42434718100 has 18 divisors (see below), whose sum is σ = 92083338494. Its totient is φ = 16973887200.

The previous prime is 42434718083. The next prime is 42434718107. The reversal of 42434718100 is 181743424.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11699018244 + 30735699856 = 108162^2 + 175316^2 .

It is a super-2 number, since 2×42434718100² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42434718107) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 212173491 + ... + 212173690.

Almost surely, 2^42434718100 is an apocalyptic number.

It is an amenable number.

42434718100 is an abundant number, since it is smaller than the sum of its proper divisors (49648620394).

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

42434718100 is a wasteful number, since it uses less digits than its factorization.

42434718100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424347195 (or 424347188 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 42434718100 in words is "forty-two billion, four hundred thirty-four million, seven hundred eighteen thousand, one hundred".