56775017719 has 8 divisors (see below), whose sum is σ = 66209933600. Its totient is φ = 48664300608.

The previous prime is 56775017701. The next prime is 56775017723. The reversal of 56775017719 is 91771057765.

It is a happy number.

It is not a de Polignac number, because 56775017719 - 2⁵ = 56775017687 is a prime.

It is a super-2 number, since 2×56775017719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56775017719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56775018719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82762074 + ... + 82762759.

It is an arithmetic number, because the mean of its divisors is an integer number (8276241700).

Almost surely, 2^56775017719 is an apocalyptic number.

56775017719 is a deficient number, since it is larger than the sum of its proper divisors (9434915881).

56775017719 is an equidigital number, since it uses as much as digits as its factorization.

56775017719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165524854 (or 165524840 counting only the distinct ones).

The product of its (nonzero) digits is 3241350, while the sum is 55.

The spelling of 56775017719 in words is "fifty-six billion, seven hundred seventy-five million, seventeen thousand, seven hundred nineteen".