42145513543 has 4 divisors (see below), whose sum is σ = 48166301200. Its totient is φ = 36124725888.

The previous prime is 42145513541. The next prime is 42145513547. The reversal of 42145513543 is 34531554124.

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 42145513543 - 2¹ = 42145513541 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 (42145513541) 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, 3010393818 + ... + 3010393831.

It is an arithmetic number, because the mean of its divisors is an integer number (12041575300).

Almost surely, 2^42145513543 is an apocalyptic number.

42145513543 is a deficient number, since it is larger than the sum of its proper divisors (6020787657).

42145513543 is an equidigital number, since it uses as much as digits as its factorization.

42145513543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020787656.

The product of its digits is 144000, while the sum is 37.

The spelling of 42145513543 in words is "forty-two billion, one hundred forty-five million, five hundred thirteen thousand, five hundred forty-three".