1445305363640 has 32 divisors (see below), whose sum is σ = 3252038146560. Its totient is φ = 578104176000.

The previous prime is 1445305363529. The next prime is 1445305363643. The reversal of 1445305363640 is 463635035441.

It is a junction number, because it is equal to n+sod(n) for n = 1445305363591 and 1445305363600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445305363643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781070 + ... + 1871010.

It is an arithmetic number, because the mean of its divisors is an integer number (101626192080).

Almost surely, 2^{1445305363640} is an apocalyptic number.

1445305363640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445305363640 is an abundant number, since it is smaller than the sum of its proper divisors (1806732782920).

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

1445305363640 is a wasteful number, since it uses less digits than its factorization.

1445305363640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123103 (or 1123099 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 1445305363640 in words is "one trillion, four hundred forty-five billion, three hundred five million, three hundred sixty-three thousand, six hundred forty".