1854108321912 has 1152 divisors, whose sum is σ = 6696976366080. Its totient is φ = 453135513600.

The previous prime is 1854108321889. The next prime is 1854108321931. The reversal of 1854108321912 is 2191238014581.

1854108321912 is a `hidden beast` number, since 1 + 8 + 5 + 410 + 8 + 3 + 219 + 12 = 666.

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, 10717389058 + ... + 10717389230.

It is an arithmetic number, because the mean of its divisors is an integer number (5813347540).

Almost surely, 2^{1854108321912} is an apocalyptic number.

1854108321912 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 1854108321912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3348488183040).

1854108321912 is an abundant number, since it is smaller than the sum of its proper divisors (4842868044168).

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

1854108321912 is a wasteful number, since it uses less digits than its factorization.

1854108321912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 1854108321912 in words is "one trillion, eight hundred fifty-four billion, one hundred eight million, three hundred twenty-one thousand, nine hundred twelve".