1853710952245 has 4 divisors (see below), whose sum is σ = 2224453142700. Its totient is φ = 1482968761792.

The previous prime is 1853710952243. The next prime is 1853710952267. The reversal of 1853710952245 is 5422590173581.

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 580410851409 + 1273300100836 = 761847^2 + 1128406^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853710952245 - 2¹ = 1853710952243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1853710952192 and 1853710952201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1853710952243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185371095220 + ... + 185371095229.

It is an arithmetic number, because the mean of its divisors is an integer number (556113285675).

Almost surely, 2^{1853710952245} is an apocalyptic number.

It is an amenable number.

1853710952245 is a deficient number, since it is larger than the sum of its proper divisors (370742190455).

1853710952245 is an equidigital number, since it uses as much as digits as its factorization.

1853710952245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370742190454.

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 1853710952245 in words is "one trillion, eight hundred fifty-three billion, seven hundred ten million, nine hundred fifty-two thousand, two hundred forty-five".