427355879987 has 2 divisors, whose sum is σ = 427355879988. Its totient is φ = 427355879986.

The previous prime is 427355879963. The next prime is 427355880071. The reversal of 427355879987 is 789978553724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427355879987 - 2²⁶ = 427288771123 is a prime.

It is not a weakly prime, because it can be changed into another prime (427355879947) 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, 213677939993 + 213677939994.

It is an arithmetic number, because the mean of its divisors is an integer number (213677939994).

Almost surely, 2^427355879987 is an apocalyptic number.

427355879987 is a deficient number, since it is larger than the sum of its proper divisors (1).

427355879987 is an equidigital number, since it uses as much as digits as its factorization.

427355879987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1066867200, while the sum is 74.

The spelling of 427355879987 in words is "four hundred twenty-seven billion, three hundred fifty-five million, eight hundred seventy-nine thousand, nine hundred eighty-seven".