1864018065000 has 1920 divisors, whose sum is σ = 7817372640000. Its totient is φ = 367476480000.

The previous prime is 1864018064989. The next prime is 1864018065037. The reversal of 1864018065000 is 5608104681.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1864018065000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 60129614985 + ... + 60129615015.

It is an arithmetic number, because the mean of its divisors is an integer number (4071548250).

Almost surely, 2^{1864018065000} is an apocalyptic number.

1864018065000 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 1864018065000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3908686320000).

1864018065000 is an abundant number, since it is smaller than the sum of its proper divisors (5953354575000).

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

1864018065000 is a wasteful number, since it uses less digits than its factorization.

1864018065000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 1864018065000 in words is "one trillion, eight hundred sixty-four billion, eighteen million, sixty-five thousand".