1443638414845 has 32 divisors (see below), whose sum is σ = 1937243952000. Its totient is φ = 1023625344000.

The previous prime is 1443638414837. The next prime is 1443638414863. The reversal of 1443638414845 is 5484148363441.

It is not a de Polignac number, because 1443638414845 - 2³ = 1443638414837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3166705 + ... + 3593785.

It is an arithmetic number, because the mean of its divisors is an integer number (60538873500).

Almost surely, 2^{1443638414845} is an apocalyptic number.

It is an amenable number.

1443638414845 is a deficient number, since it is larger than the sum of its proper divisors (493605537155).

1443638414845 is a wasteful number, since it uses less digits than its factorization.

1443638414845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428637.

The product of its digits is 17694720, while the sum is 55.

The spelling of 1443638414845 in words is "one trillion, four hundred forty-three billion, six hundred thirty-eight million, four hundred fourteen thousand, eight hundred forty-five".