56386849218777 has 108 divisors (see below), whose sum is σ = 105848716568868. Its totient is φ = 28811673475200.

The previous prime is 56386849218727. The next prime is 56386849218779. The reversal of 56386849218777 is 77781294868365.

56386849218777 is a `hidden beast` number, since 5 + 6 + 386 + 8 + 4 + 92 + 1 + 87 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22900014876816 + 33486834341961 = 4785396^2 + 5786781^2 .

It is not a de Polignac number, because 56386849218777 - 2²² = 56386845024473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56386849218696 and 56386849218705.

It is not an unprimeable number, because it can be changed into a prime (56386849218779) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 5406498 + ... + 11916539.

It is an arithmetic number, because the mean of its divisors is an integer number (980080708971).

Almost surely, 2^{56386849218777} is an apocalyptic number.

It is an amenable number.

56386849218777 is a deficient number, since it is larger than the sum of its proper divisors (49461867350091).

56386849218777 is a wasteful number, since it uses less digits than its factorization.

56386849218777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17323140 (or 17323119 counting only the distinct ones).

The product of its digits is 6827950080, while the sum is 81.

The spelling of 56386849218777 in words is "fifty-six trillion, three hundred eighty-six billion, eight hundred forty-nine million, two hundred eighteen thousand, seven hundred seventy-seven".