1448578077745 has 4 divisors (see below), whose sum is σ = 1738293693300. Its totient is φ = 1158862462192.

The previous prime is 1448578077743. The next prime is 1448578077757. The reversal of 1448578077745 is 5477708758441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 157436749089 + 1291141328656 = 396783^2 + 1136284^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448578077745 - 2¹ = 1448578077743 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1448578077743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144857807770 + ... + 144857807779.

It is an arithmetic number, because the mean of its divisors is an integer number (434573423325).

Almost surely, 2^{1448578077745} is an apocalyptic number.

It is an amenable number.

1448578077745 is a deficient number, since it is larger than the sum of its proper divisors (289715615555).

1448578077745 is an equidigital number, since it uses as much as digits as its factorization.

1448578077745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289715615554.

The product of its (nonzero) digits is 245862400, while the sum is 67.

The spelling of 1448578077745 in words is "one trillion, four hundred forty-eight billion, five hundred seventy-eight million, seventy-seven thousand, seven hundred forty-five".