1427205730677 has 64 divisors (see below), whose sum is σ = 2034448953600. Its totient is φ = 888539258880.

The previous prime is 1427205730637. The next prime is 1427205730681. The reversal of 1427205730677 is 7760375027241.

It is a happy number.

It is not a de Polignac number, because 1427205730677 - 2³⁸ = 1152327823733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427205730627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80811474 + ... + 80829132.

It is an arithmetic number, because the mean of its divisors is an integer number (31788264900).

Almost surely, 2^{1427205730677} is an apocalyptic number.

It is an amenable number.

1427205730677 is a deficient number, since it is larger than the sum of its proper divisors (607243222923).

1427205730677 is a wasteful number, since it uses less digits than its factorization.

1427205730677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18006.

The product of its (nonzero) digits is 3457440, while the sum is 51.

The spelling of 1427205730677 in words is "one trillion, four hundred twenty-seven billion, two hundred five million, seven hundred thirty thousand, six hundred seventy-seven".