1447864774121 has 4 divisors (see below), whose sum is σ = 1458281067600. Its totient is φ = 1437448480644.

The previous prime is 1447864774079. The next prime is 1447864774177. The reversal of 1447864774121 is 1214774687441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1447864774121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1447864774621) 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 3 ways as a sum of consecutive naturals, for example, 5208146531 + ... + 5208146808.

It is an arithmetic number, because the mean of its divisors is an integer number (364570266900).

Almost surely, 2^{1447864774121} is an apocalyptic number.

It is an amenable number.

1447864774121 is a deficient number, since it is larger than the sum of its proper divisors (10416293479).

1447864774121 is a wasteful number, since it uses less digits than its factorization.

1447864774121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10416293478.

The product of its digits is 8429568, while the sum is 56.

The spelling of 1447864774121 in words is "one trillion, four hundred forty-seven billion, eight hundred sixty-four million, seven hundred seventy-four thousand, one hundred twenty-one".