56818781446 has 32 divisors (see below), whose sum is σ = 103361287680. Its totient is φ = 22897381056.

The previous prime is 56818781431. The next prime is 56818781501. The reversal of 56818781446 is 64418781865.

56818781446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476391 + ... + 1514386.

It is an arithmetic number, because the mean of its divisors is an integer number (3230040240).

Almost surely, 2^56818781446 is an apocalyptic number.

56818781446 is a deficient number, since it is larger than the sum of its proper divisors (46542506234).

56818781446 is a wasteful number, since it uses less digits than its factorization.

56818781446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2990868.

The product of its digits is 10321920, while the sum is 58.

The spelling of 56818781446 in words is "fifty-six billion, eight hundred eighteen million, seven hundred eighty-one thousand, four hundred forty-six".