1868303944749 has 24 divisors (see below), whose sum is σ = 2738269121056. Its totient is φ = 1132243912800.

The previous prime is 1868303944711. The next prime is 1868303944751. The reversal of 1868303944749 is 9474493038681.

It is not a de Polignac number, because 1868303944749 - 2¹² = 1868303940653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1868303944749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868303944349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7062234 + ... + 7322004.

Almost surely, 2^{1868303944749} is an apocalyptic number.

It is an amenable number.

1868303944749 is a deficient number, since it is larger than the sum of its proper divisors (869965176307).

1868303944749 is a wasteful number, since it uses less digits than its factorization.

1868303944749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279609 (or 279598 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 66.

The spelling of 1868303944749 in words is "one trillion, eight hundred sixty-eight billion, three hundred three million, nine hundred forty-four thousand, seven hundred forty-nine".