563277546781 has 4 divisors (see below), whose sum is σ = 564406360000. Its totient is φ = 562148733564.

The previous prime is 563277546779. The next prime is 563277546823. The reversal of 563277546781 is 187645772365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 187645772365 = 5 ⋅37529154473.

It is a cyclic number.

It is not a de Polignac number, because 563277546781 - 2¹ = 563277546779 is a prime.

It is a super-2 number, since 2×563277546781² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563277546581) 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 3 ways as a sum of consecutive naturals, for example, 564405861 + ... + 564406858.

It is an arithmetic number, because the mean of its divisors is an integer number (141101590000).

Almost surely, 2^563277546781 is an apocalyptic number.

It is an amenable number.

563277546781 is a deficient number, since it is larger than the sum of its proper divisors (1128813219).

563277546781 is a wasteful number, since it uses less digits than its factorization.

563277546781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128813218.

The product of its digits is 59270400, while the sum is 61.

The spelling of 563277546781 in words is "five hundred sixty-three billion, two hundred seventy-seven million, five hundred forty-six thousand, seven hundred eighty-one".