1851424146000 has 1440 divisors, whose sum is σ = 7990062103296. Its totient is φ = 396152064000.

The previous prime is 1851424145971. The next prime is 1851424146017. The reversal of 1851424146000 is 6414241581.

1851424146000 is a `hidden beast` number, since 1 + 8 + 5 + 1 + 4 + 2 + 41 + 4 + 600 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 651220579 + ... + 651223421.

Almost surely, 2^{1851424146000} is an apocalyptic number.

1851424146000 is a gapful number since it is divisible by the number (10) 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 1851424146000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3995031051648).

1851424146000 is an abundant number, since it is smaller than the sum of its proper divisors (6138637957296).

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

1851424146000 is a wasteful number, since it uses less digits than its factorization.

1851424146000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2930 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

Adding to 1851424146000 its reverse (6414241581), we get a palindrome (1857838387581).

The spelling of 1851424146000 in words is "one trillion, eight hundred fifty-one billion, four hundred twenty-four million, one hundred forty-six thousand".