1445558440672 has 12 divisors (see below), whose sum is σ = 2845943180136. Its totient is φ = 722779220320.

The previous prime is 1445558440661. The next prime is 1445558440681. The reversal of 1445558440672 is 2760448555441.

It is a happy number.

It is a super-3 number, since 3×1445558440672³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22586850604 + ... + 22586850667.

It is an arithmetic number, because the mean of its divisors is an integer number (237161931678).

Almost surely, 2^{1445558440672} is an apocalyptic number.

It is an amenable number.

1445558440672 is a deficient number, since it is larger than the sum of its proper divisors (1400384739464).

1445558440672 is an equidigital number, since it uses as much as digits as its factorization.

1445558440672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45173701281 (or 45173701273 counting only the distinct ones).

The product of its (nonzero) digits is 21504000, while the sum is 55.

The spelling of 1445558440672 in words is "one trillion, four hundred forty-five billion, five hundred fifty-eight million, four hundred forty thousand, six hundred seventy-two".