1993147065000 has 960 divisors, whose sum is σ = 8790789047040. Its totient is φ = 395781120000.

The previous prime is 1993147064977. The next prime is 1993147065011. The reversal of 1993147065000 is 5607413991.

1993147065000 is a `hidden beast` number, since 1 + 99 + 31 + 470 + 65 + 0 + 0 + 0 = 666.

It is a super-2 number, since 2×1993147065000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 69600685 + ... + 69629315.

It is an arithmetic number, because the mean of its divisors is an integer number (9157071924).

Almost surely, 2^{1993147065000} is an apocalyptic number.

1993147065000 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 1993147065000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4395394523520).

1993147065000 is an abundant number, since it is smaller than the sum of its proper divisors (6797641982040).

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

1993147065000 is a wasteful number, since it uses less digits than its factorization.

1993147065000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28700 (or 28678 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 1993147065000 in words is "one trillion, nine hundred ninety-three billion, one hundred forty-seven million, sixty-five thousand".