42143601839 has 2 divisors, whose sum is σ = 42143601840. Its totient is φ = 42143601838.

The previous prime is 42143601823. The next prime is 42143601881. The reversal of 42143601839 is 93810634124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42143601839 - 2⁴ = 42143601823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42143601796 and 42143601805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42143601439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071800919 + 21071800920.

It is an arithmetic number, because the mean of its divisors is an integer number (21071800920).

Almost surely, 2^42143601839 is an apocalyptic number.

42143601839 is a deficient number, since it is larger than the sum of its proper divisors (1).

42143601839 is an equidigital number, since it uses as much as digits as its factorization.

42143601839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 42143601839 in words is "forty-two billion, one hundred forty-three million, six hundred one thousand, eight hundred thirty-nine".