12247772085177 has 16 divisors (see below), whose sum is σ = 17353394658432. Its totient is φ = 7657133356800.

The previous prime is 12247772085149. The next prime is 12247772085191. The reversal of 12247772085177 is 77158027774221.

It is not a de Polignac number, because 12247772085177 - 2⁸ = 12247772084921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12247772085177.

It is not an unprimeable number, because it can be changed into a prime (12247772085127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433473949 + ... + 433502202.

It is an arithmetic number, because the mean of its divisors is an integer number (1084587166152).

Almost surely, 2^{12247772085177} is an apocalyptic number.

12247772085177 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12247772085177 is a deficient number, since it is larger than the sum of its proper divisors (5105622573255).

12247772085177 is a wasteful number, since it uses less digits than its factorization.

12247772085177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866976448.

The product of its (nonzero) digits is 21512960, while the sum is 60.

The spelling of 12247772085177 in words is "twelve trillion, two hundred forty-seven billion, seven hundred seventy-two million, eighty-five thousand, one hundred seventy-seven".