1851384750336 has 405 divisors, whose sum is σ = 6075053604543. Its totient is φ = 560372567040.

The previous prime is 1851384750329. The next prime is 1851384750353. The reversal of 1851384750336 is 6330574831581.

The square root of 1851384750336 is 1360656.

It is a perfect power (a square), and thus also a powerful number.

1851384750336 is a `hidden beast` number, since 1 + 8 + 5 + 138 + 475 + 0 + 3 + 36 = 666.

It is a super-2 number, since 2×1851384750336² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2155278675 + ... + 2155279533.

Almost surely, 2^{1851384750336} is an apocalyptic number.

1851384750336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1851384750336 is the 1360656-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1851384750336

1851384750336 is an abundant number, since it is smaller than the sum of its proper divisors (4223668854207).

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

1851384750336 is an frugal number, since it uses more digits than its factorization.

1851384750336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

It can be divided in two parts, 18513 and 84750336, that added together give a square (84768849 = 9207²).

The spelling of 1851384750336 in words is "one trillion, eight hundred fifty-one billion, three hundred eighty-four million, seven hundred fifty thousand, three hundred thirty-six".