1445456511463 has 8 divisors (see below), whose sum is σ = 1511902224000. Its totient is φ = 1379310780408.

The previous prime is 1445456511439. The next prime is 1445456511553. The reversal of 1445456511463 is 3641156545441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445456511463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445456515463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74985513 + ... + 75004786.

It is an arithmetic number, because the mean of its divisors is an integer number (188987778000).

Almost surely, 2^{1445456511463} is an apocalyptic number.

1445456511463 is a deficient number, since it is larger than the sum of its proper divisors (66445712537).

1445456511463 is a wasteful number, since it uses less digits than its factorization.

1445456511463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149990741.

The product of its digits is 3456000, while the sum is 49.

The spelling of 1445456511463 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred eleven thousand, four hundred sixty-three".