1993791488000 has 240 divisors, whose sum is σ = 5359219529664. Its totient is φ = 736159334400.

The previous prime is 1993791487999. The next prime is 1993791488027. The reversal of 1993791488000 is 8841973991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26586557 + ... + 26661443.

Almost surely, 2^{1993791488000} is an apocalyptic number.

1993791488000 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 1993791488000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679609764832).

1993791488000 is an abundant number, since it is smaller than the sum of its proper divisors (3365428041664).

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

1993791488000 is an frugal number, since it uses more digits than its factorization.

1993791488000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74943 (or 74907 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 59.

The spelling of 1993791488000 in words is "one trillion, nine hundred ninety-three billion, seven hundred ninety-one million, four hundred eighty-eight thousand".