1445456511492 has 96 divisors (see below), whose sum is σ = 3897026445312. Its totient is φ = 408447017856.

The previous prime is 1445456511439. The next prime is 1445456511553. The reversal of 1445456511492 is 2941156545441.

It is a happy number.

It is a super-2 number, since 2×1445456511492² (a number of 25 digits) contains 22 as substring.

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, 6579933 + ... + 6796059.

It is an arithmetic number, because the mean of its divisors is an integer number (40594025472).

Almost surely, 2^{1445456511492} is an apocalyptic number.

1445456511492 is a gapful number since it is divisible by the number (12) 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 1445456511492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1948513222656).

1445456511492 is an abundant number, since it is smaller than the sum of its proper divisors (2451569933820).

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

1445456511492 is a wasteful number, since it uses less digits than its factorization.

1445456511492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217017 (or 217015 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The spelling of 1445456511492 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred eleven thousand, four hundred ninety-two".