1853645245161 has 8 divisors (see below), whose sum is σ = 2476045326624. Its totient is φ = 1233504330240.

The previous prime is 1853645245157. The next prime is 1853645245253. The reversal of 1853645245161 is 1615425463581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1853645245161 - 2² = 1853645245157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1853645245561) 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, 564789720 + ... + 564793001.

It is an arithmetic number, because the mean of its divisors is an integer number (309505665828).

Almost surely, 2^{1853645245161} is an apocalyptic number.

It is an amenable number.

1853645245161 is a deficient number, since it is larger than the sum of its proper divisors (622400081463).

1853645245161 is a wasteful number, since it uses less digits than its factorization.

1853645245161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129583271.

The product of its digits is 3456000, while the sum is 51.

The spelling of 1853645245161 in words is "one trillion, eight hundred fifty-three billion, six hundred forty-five million, two hundred forty-five thousand, one hundred sixty-one".