1284745028349 has 8 divisors (see below), whose sum is σ = 1745314000992. Its totient is φ = 840336370640.

The previous prime is 1284745028323. The next prime is 1284745028393. The reversal of 1284745028349 is 9438205474821.

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

It is a cyclic number.

It is not a de Polignac number, because 1284745028349 - 2⁷ = 1284745028221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284745028309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4040078547 + ... + 4040078864.

It is an arithmetic number, because the mean of its divisors is an integer number (218164250124).

Almost surely, 2^{1284745028349} is an apocalyptic number.

It is an amenable number.

1284745028349 is a deficient number, since it is larger than the sum of its proper divisors (460568972643).

1284745028349 is an equidigital number, since it uses as much as digits as its factorization.

1284745028349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080157467.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 1284745028349 in words is "one trillion, two hundred eighty-four billion, seven hundred forty-five million, twenty-eight thousand, three hundred forty-nine".