427155813826559 has 4 divisors (see below), whose sum is σ = 428613683498616. Its totient is φ = 425697944154504.

The previous prime is 427155813826537. The next prime is 427155813826571. The reversal of 427155813826559 is 955628318551724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427155813826559 - 2²⁸ = 427155545391103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427155813826492 and 427155813826501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427155813876559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728934835589 + ... + 728934836174.

It is an arithmetic number, because the mean of its divisors is an integer number (107153420874654).

Almost surely, 2^{427155813826559} is an apocalyptic number.

427155813826559 is a deficient number, since it is larger than the sum of its proper divisors (1457869672057).

427155813826559 is a wasteful number, since it uses less digits than its factorization.

427155813826559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457869672056.

The product of its digits is 725760000, while the sum is 71.

The spelling of 427155813826559 in words is "four hundred twenty-seven trillion, one hundred fifty-five billion, eight hundred thirteen million, eight hundred twenty-six thousand, five hundred fifty-nine".