1875520273045 has 4 divisors (see below), whose sum is σ = 2250624327660. Its totient is φ = 1500416218432.

The previous prime is 1875520273043. The next prime is 1875520273049. The reversal of 1875520273045 is 5403720255781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 350139659076 + 1525380613969 = 591726^2 + 1235063^2 .

It is a cyclic number.

It is not a de Polignac number, because 1875520273045 - 2¹ = 1875520273043 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1875520273045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1875520273043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187552027300 + ... + 187552027309.

It is an arithmetic number, because the mean of its divisors is an integer number (562656081915).

Almost surely, 2^{1875520273045} is an apocalyptic number.

It is an amenable number.

1875520273045 is a deficient number, since it is larger than the sum of its proper divisors (375104054615).

1875520273045 is an equidigital number, since it uses as much as digits as its factorization.

1875520273045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375104054614.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 1875520273045 in words is "one trillion, eight hundred seventy-five billion, five hundred twenty million, two hundred seventy-three thousand, forty-five".