42143635452 has 24 divisors (see below), whose sum is σ = 99519912576. Its totient is φ = 13878626608.

The previous prime is 42143635447. The next prime is 42143635483. The reversal of 42143635452 is 25453634124.

It is a super-2 number, since 2×42143635452² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42143635452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21155448 + ... + 21157439.

It is an arithmetic number, because the mean of its divisors is an integer number (4146663024).

Almost surely, 2^42143635452 is an apocalyptic number.

It is an amenable number.

42143635452 is an abundant number, since it is smaller than the sum of its proper divisors (57376277124).

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

42143635452 is a wasteful number, since it uses less digits than its factorization.

42143635452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42312977 (or 42312975 counting only the distinct ones).

The product of its digits is 345600, while the sum is 39.

The spelling of 42143635452 in words is "forty-two billion, one hundred forty-three million, six hundred thirty-five thousand, four hundred fifty-two".