42340015427 has 2 divisors, whose sum is σ = 42340015428. Its totient is φ = 42340015426.

The previous prime is 42340015411. The next prime is 42340015483. The reversal of 42340015427 is 72451004324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42340015427 - 2⁴ = 42340015411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42340015393 and 42340015402.

It is not a weakly prime, because it can be changed into another prime (42340015127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170007713 + 21170007714.

It is an arithmetic number, because the mean of its divisors is an integer number (21170007714).

Almost surely, 2^42340015427 is an apocalyptic number.

42340015427 is a deficient number, since it is larger than the sum of its proper divisors (1).

42340015427 is an equidigital number, since it uses as much as digits as its factorization.

42340015427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 42340015427 in words is "forty-two billion, three hundred forty million, fifteen thousand, four hundred twenty-seven".