42143696243 has 4 divisors (see below), whose sum is σ = 45974941368. Its totient is φ = 38312451120.

The previous prime is 42143696227. The next prime is 42143696267. The reversal of 42143696243 is 34269634124.

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 42143696243 - 2⁴ = 42143696227 is a prime.

It is a super-2 number, since 2×42143696243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42143696194 and 42143696203.

It is not an unprimeable number, because it can be changed into a prime (42143696443) 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 3 ways as a sum of consecutive naturals, for example, 1915622546 + ... + 1915622567.

It is an arithmetic number, because the mean of its divisors is an integer number (11493735342).

Almost surely, 2^42143696243 is an apocalyptic number.

42143696243 is a deficient number, since it is larger than the sum of its proper divisors (3831245125).

42143696243 is a wasteful number, since it uses less digits than its factorization.

42143696243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831245124.

The product of its digits is 746496, while the sum is 44.

The spelling of 42143696243 in words is "forty-two billion, one hundred forty-three million, six hundred ninety-six thousand, two hundred forty-three".