1857113543856 has 160 divisors (see below), whose sum is σ = 5256160459200. Its totient is φ = 562400133120.

The previous prime is 1857113543851. The next prime is 1857113543861. The reversal of 1857113543856 is 6583453117581.

It is an interprime number because it is at equal distance from previous prime (1857113543851) and next prime (1857113543861).

It is a junction number, because it is equal to n+sod(n) for n = 1857113543796 and 1857113543805.

It is not an unprimeable number, because it can be changed into a prime (1857113543851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153360330 + ... + 153372438.

It is an arithmetic number, because the mean of its divisors is an integer number (32851002870).

Almost surely, 2^{1857113543856} is an apocalyptic number.

1857113543856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1857113543856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628080229600).

1857113543856 is an abundant number, since it is smaller than the sum of its proper divisors (3399046915344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1857113543856 is a wasteful number, since it uses less digits than its factorization.

1857113543856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18647 (or 18641 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 57.

The spelling of 1857113543856 in words is "one trillion, eight hundred fifty-seven billion, one hundred thirteen million, five hundred forty-three thousand, eight hundred fifty-six".