1849191486912 has 1008 divisors, whose sum is σ = 6864874272256. Its totient is φ = 465589555200.

The previous prime is 1849191486881. The next prime is 1849191486953. The reversal of 1849191486912 is 2196841919481.

1849191486912 is a `hidden beast` number, since 1 + 8 + 491 + 91 + 48 + 6 + 9 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1849191486912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3797107533 + ... + 3797108019.

Almost surely, 2^{1849191486912} is an apocalyptic number.

1849191486912 is a gapful number since it is divisible by the number (12) 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 1849191486912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3432437136128).

1849191486912 is an abundant number, since it is smaller than the sum of its proper divisors (5015682785344).

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

1849191486912 is a wasteful number, since it uses less digits than its factorization.

1849191486912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 734 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 63.

The spelling of 1849191486912 in words is "one trillion, eight hundred forty-nine billion, one hundred ninety-one million, four hundred eighty-six thousand, nine hundred twelve".