1845338080871 has 4 divisors (see below), whose sum is σ = 1851271644144. Its totient is φ = 1839404517600.

The previous prime is 1845338080829. The next prime is 1845338080897. The reversal of 1845338080871 is 1780808335481.

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

It is a cyclic number.

It is not a de Polignac number, because 1845338080871 - 2¹⁰ = 1845338079847 is a prime.

It is a super-2 number, since 2×1845338080871² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1845338080801) 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, 2966781170 + ... + 2966781791.

It is an arithmetic number, because the mean of its divisors is an integer number (462817911036).

Almost surely, 2^{1845338080871} is an apocalyptic number.

1845338080871 is a deficient number, since it is larger than the sum of its proper divisors (5933563273).

1845338080871 is an equidigital number, since it uses as much as digits as its factorization.

1845338080871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933563272.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 1845338080871 in words is "one trillion, eight hundred forty-five billion, three hundred thirty-eight million, eighty thousand, eight hundred seventy-one".