1605470142427 has 2 divisors, whose sum is σ = 1605470142428. Its totient is φ = 1605470142426.

The previous prime is 1605470142337. The next prime is 1605470142467. The reversal of 1605470142427 is 7242410745061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1605470142427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1605470142467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802735071213 + 802735071214.

It is an arithmetic number, because the mean of its divisors is an integer number (802735071214).

Almost surely, 2^{1605470142427} is an apocalyptic number.

1605470142427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605470142427 is an equidigital number, since it uses as much as digits as its factorization.

1605470142427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 43.

Adding to 1605470142427 its reverse (7242410745061), we get a palindrome (8847880887488).

The spelling of 1605470142427 in words is "one trillion, six hundred five billion, four hundred seventy million, one hundred forty-two thousand, four hundred twenty-seven".