42053343643 has 4 divisors (see below), whose sum is σ = 42305160240. Its totient is φ = 41801527048.

The previous prime is 42053343617. The next prime is 42053343667. The reversal of 42053343643 is 34634335024.

42053343643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42053343643 - 2¹³ = 42053335451 is a prime.

It is a super-2 number, since 2×42053343643² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42053343743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125908048 + ... + 125908381.

It is an arithmetic number, because the mean of its divisors is an integer number (10576290060).

Almost surely, 2^42053343643 is an apocalyptic number.

42053343643 is a deficient number, since it is larger than the sum of its proper divisors (251816597).

42053343643 is a wasteful number, since it uses less digits than its factorization.

42053343643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251816596.

The product of its (nonzero) digits is 311040, while the sum is 37.

Adding to 42053343643 its reverse (34634335024), we get a palindrome (76687678667).

The spelling of 42053343643 in words is "forty-two billion, fifty-three million, three hundred forty-three thousand, six hundred forty-three".