563889266978 has 16 divisors (see below), whose sum is σ = 875952792000. Its totient is φ = 271926163152.

The previous prime is 563889266939. The next prime is 563889266999. The reversal of 563889266978 is 879662988365.

It is a super-2 number, since 2×563889266978² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 563889266899 and 563889266908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5236268 + ... + 5342871.

It is an arithmetic number, because the mean of its divisors is an integer number (54747049500).

Almost surely, 2^563889266978 is an apocalyptic number.

563889266978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

563889266978 is a deficient number, since it is larger than the sum of its proper divisors (312063525022).

563889266978 is a wasteful number, since it uses less digits than its factorization.

563889266978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580089.

The product of its digits is 1881169920, while the sum is 77.

The spelling of 563889266978 in words is "five hundred sixty-three billion, eight hundred eighty-nine million, two hundred sixty-six thousand, nine hundred seventy-eight".