12770415505 has 8 divisors (see below), whose sum is σ = 15738674472. Its totient is φ = 9940215168.

The previous prime is 12770415503. The next prime is 12770415517. The reversal of 12770415505 is 50551407721.

12770415505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4245955921 + 8524459584 = 65161^2 + 92328^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12770415505 - 2¹ = 12770415503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12770415503) 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, 34514452 + ... + 34514821.

It is an arithmetic number, because the mean of its divisors is an integer number (1967334309).

Almost surely, 2^12770415505 is an apocalyptic number.

It is an amenable number.

12770415505 is a deficient number, since it is larger than the sum of its proper divisors (2968258967).

12770415505 is an equidigital number, since it uses as much as digits as its factorization.

12770415505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69029315.

The product of its (nonzero) digits is 49000, while the sum is 37.

It can be divided in two parts, 12770 and 415505, that added together give a triangular number (428275 = T₉₂₅).

The spelling of 12770415505 in words is "twelve billion, seven hundred seventy million, four hundred fifteen thousand, five hundred five".