1445705730975 has 24 divisors (see below), whose sum is σ = 2607527428992. Its totient is φ = 700948232800.

The previous prime is 1445705730961. The next prime is 1445705730983. The reversal of 1445705730975 is 5790375075441.

It is not a de Polignac number, because 1445705730975 - 2²¹ = 1445703633823 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 876184467 + ... + 876186116.

It is an arithmetic number, because the mean of its divisors is an integer number (108646976208).

Almost surely, 2^{1445705730975} is an apocalyptic number.

1445705730975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1445705730975 is a deficient number, since it is larger than the sum of its proper divisors (1161821698017).

1445705730975 is a wasteful number, since it uses less digits than its factorization.

1445705730975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752370607 (or 1752370602 counting only the distinct ones).

The product of its (nonzero) digits is 18522000, while the sum is 57.

The spelling of 1445705730975 in words is "one trillion, four hundred forty-five billion, seven hundred five million, seven hundred thirty thousand, nine hundred seventy-five".