12152717775 has 144 divisors (see below), whose sum is σ = 25227671040. Its totient is φ = 5530291200.

The previous prime is 12152717723. The next prime is 12152717779. The reversal of 12152717775 is 57771725121.

It is not a de Polignac number, because 12152717775 - 2⁶ = 12152717711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12152717775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152717779) 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 143 ways as a sum of consecutive naturals, for example, 5312682 + ... + 5314968.

It is an arithmetic number, because the mean of its divisors is an integer number (175192160).

Almost surely, 2^12152717775 is an apocalyptic number.

12152717775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12152717775 is an abundant number, since it is smaller than the sum of its proper divisors (13074953265).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12152717775 is a wasteful number, since it uses less digits than its factorization.

12152717775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446 (or 2438 counting only the distinct ones).

The product of its digits is 240100, while the sum is 45.

It can be divided in two parts, 12152 and 717775, that added together give a palindrome (729927).

The spelling of 12152717775 in words is "twelve billion, one hundred fifty-two million, seven hundred seventeen thousand, seven hundred seventy-five".