1445784738913 has 8 divisors (see below), whose sum is σ = 1522078992800. Its totient is φ = 1369510517088.

The previous prime is 1445784738911. The next prime is 1445784738971. The reversal of 1445784738913 is 3198374875441.

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 1445784738913 - 2¹ = 1445784738911 is a prime.

It is a super-2 number, since 2×1445784738913² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445784738911) 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, 4859748 + ... + 5148661.

It is an arithmetic number, because the mean of its divisors is an integer number (190259874100).

Almost surely, 2^{1445784738913} is an apocalyptic number.

It is an amenable number.

1445784738913 is a deficient number, since it is larger than the sum of its proper divisors (76294253887).

1445784738913 is a wasteful number, since it uses less digits than its factorization.

1445784738913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016031.

The product of its digits is 81285120, while the sum is 64.

The spelling of 1445784738913 in words is "one trillion, four hundred forty-five billion, seven hundred eighty-four million, seven hundred thirty-eight thousand, nine hundred thirteen".