42145401427 has 2 divisors, whose sum is σ = 42145401428. Its totient is φ = 42145401426.

The previous prime is 42145401373. The next prime is 42145401433. The reversal of 42145401427 is 72410454124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42145401427 - 2¹¹ = 42145399379 is a prime.

It is a super-2 number, since 2×42145401427² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42145401392 and 42145401401.

It is not a weakly prime, because it can be changed into another prime (42145401127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072700713 + 21072700714.

It is an arithmetic number, because the mean of its divisors is an integer number (21072700714).

Almost surely, 2^42145401427 is an apocalyptic number.

42145401427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42145401427 is an equidigital number, since it uses as much as digits as its factorization.

42145401427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 34.

The spelling of 42145401427 in words is "forty-two billion, one hundred forty-five million, four hundred one thousand, four hundred twenty-seven".