1445456511438 has 16 divisors (see below), whose sum is σ = 3060966730320. Its totient is φ = 453476552576.

The previous prime is 1445456511397. The next prime is 1445456511439. The reversal of 1445456511438 is 8341156545441.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445456511439) 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, 7085571033 + ... + 7085571236.

It is an arithmetic number, because the mean of its divisors is an integer number (191310420645).

Almost surely, 2^{1445456511438} is an apocalyptic number.

1445456511438 is an abundant number, since it is smaller than the sum of its proper divisors (1615510218882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445456511438 is a wasteful number, since it uses less digits than its factorization.

1445456511438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14171142291.

The product of its digits is 4608000, while the sum is 51.

The spelling of 1445456511438 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred eleven thousand, four hundred thirty-eight".