42878536875143 has 4 divisors (see below), whose sum is σ = 42950844695088. Its totient is φ = 42806229055200.

The previous prime is 42878536875127. The next prime is 42878536875151. The reversal of 42878536875143 is 34157863587824.

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 42878536875143 - 2⁴ = 42878536875127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878536875193) 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, 36153909083 + ... + 36153910268.

It is an arithmetic number, because the mean of its divisors is an integer number (10737711173772).

Almost surely, 2^{42878536875143} is an apocalyptic number.

42878536875143 is a deficient number, since it is larger than the sum of its proper divisors (72307819945).

42878536875143 is an equidigital number, since it uses as much as digits as its factorization.

42878536875143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72307819944.

The product of its digits is 1083801600, while the sum is 71.

The spelling of 42878536875143 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred thirty-six million, eight hundred seventy-five thousand, one hundred forty-three".