42054321427 has 2 divisors, whose sum is σ = 42054321428. Its totient is φ = 42054321426.

The previous prime is 42054321391. The next prime is 42054321433. The reversal of 42054321427 is 72412345024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42054321427 - 2¹¹ = 42054319379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42054321392 and 42054321401.

It is not a weakly prime, because it can be changed into another prime (42054321487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21027160713 + 21027160714.

It is an arithmetic number, because the mean of its divisors is an integer number (21027160714).

Almost surely, 2^42054321427 is an apocalyptic number.

42054321427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054321427 is an equidigital number, since it uses as much as digits as its factorization.

42054321427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 42054321427 in words is "forty-two billion, fifty-four million, three hundred twenty-one thousand, four hundred twenty-seven".