1445365278720 has 768 divisors, whose sum is σ = 5848870809600. Its totient is φ = 335140945920.

The previous prime is 1445365278703. The next prime is 1445365278739. The reversal of 1445365278720 is 278725635441.

1445365278720 is a `hidden beast` number, since 1 + 4 + 4 + 5 + 36 + 527 + 87 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (768).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69939109 + ... + 69959771.

It is an arithmetic number, because the mean of its divisors is an integer number (7615717200).

Almost surely, 2^{1445365278720} is an apocalyptic number.

1445365278720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445365278720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2924435404800).

1445365278720 is an abundant number, since it is smaller than the sum of its proper divisors (4403505530880).

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

1445365278720 is a wasteful number, since it uses less digits than its factorization.

1445365278720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20733 (or 20707 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 1445365278720 in words is "one trillion, four hundred forty-five billion, three hundred sixty-five million, two hundred seventy-eight thousand, seven hundred twenty".