1445456511507 has 16 divisors (see below), whose sum is σ = 1993778958240. Its totient is φ = 930387397632.

The previous prime is 1445456511439. The next prime is 1445456511553. The reversal of 1445456511507 is 7051156545441.

It is a happy number.

It is not a de Polignac number, because 1445456511507 - 2⁷ = 1445456511379 is a prime.

It is a super-2 number, since 2×1445456511507² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1445456511007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4188643 + ... + 4520579.

It is an arithmetic number, because the mean of its divisors is an integer number (124611184890).

Almost surely, 2^{1445456511507} is an apocalyptic number.

1445456511507 is a deficient number, since it is larger than the sum of its proper divisors (548322446733).

1445456511507 is a wasteful number, since it uses less digits than its factorization.

1445456511507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382022.

The product of its (nonzero) digits is 1680000, while the sum is 48.

The spelling of 1445456511507 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred eleven thousand, five hundred seven".