1445383375657 has 48 divisors (see below), whose sum is σ = 1600498710336. Its totient is φ = 1304338464000.

The previous prime is 1445383375627. The next prime is 1445383375679. The reversal of 1445383375657 is 7565733835441.

It is not a de Polignac number, because 1445383375657 - 2¹⁵ = 1445383342889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a junction number, because it is equal to n+sod(n) for n = 1445383375595 and 1445383375604.

It is not an unprimeable number, because it can be changed into a prime (1445383375607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2091726682 + ... + 2091727372.

It is an arithmetic number, because the mean of its divisors is an integer number (33343723132).

Almost surely, 2^{1445383375657} is an apocalyptic number.

It is an amenable number.

1445383375657 is a deficient number, since it is larger than the sum of its proper divisors (155115334679).

1445383375657 is a wasteful number, since it uses less digits than its factorization.

1445383375657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1709 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 61.

The spelling of 1445383375657 in words is "one trillion, four hundred forty-five billion, three hundred eighty-three million, three hundred seventy-five thousand, six hundred fifty-seven".