1852055981568 has 640 divisors, whose sum is σ = 6275579587200. Its totient is φ = 534253142016.

The previous prime is 1852055981563. The next prime is 1852055981621. The reversal of 1852055981568 is 8651895502581.

1852055981568 is a `hidden beast` number, since 1 + 8 + 5 + 2 + 0 + 559 + 8 + 15 + 68 = 666.

It is a super-2 number, since 2×1852055981568² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1852055981561) 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 63 ways as a sum of consecutive naturals, for example, 895144438 + ... + 895146506.

It is an arithmetic number, because the mean of its divisors is an integer number (9805593105).

Almost surely, 2^{1852055981568} is an apocalyptic number.

1852055981568 is a gapful number since it is divisible by the number (18) 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 1852055981568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3137789793600).

1852055981568 is an abundant number, since it is smaller than the sum of its proper divisors (4423523605632).

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

1852055981568 is a wasteful number, since it uses less digits than its factorization.

1852055981568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2397 counting only the distinct ones).

The product of its (nonzero) digits is 34560000, while the sum is 63.

The spelling of 1852055981568 in words is "one trillion, eight hundred fifty-two billion, fifty-five million, nine hundred eighty-one thousand, five hundred sixty-eight".