1799005897920 has 672 divisors, whose sum is σ = 7482311940096. Its totient is φ = 361757491200.

The previous prime is 1799005897907. The next prime is 1799005897981. The reversal of 1799005897920 is 297985009971.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15984564 + ... + 16096716.

It is an arithmetic number, because the mean of its divisors is an integer number (11134392768).

Almost surely, 2^{1799005897920} is an apocalyptic number.

1799005897920 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 1799005897920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3741155970048).

1799005897920 is an abundant number, since it is smaller than the sum of its proper divisors (5683306042176).

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

1799005897920 is a wasteful number, since it uses less digits than its factorization.

1799005897920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112229 (or 112212 counting only the distinct ones).

The product of its (nonzero) digits is 25719120, while the sum is 66.

The spelling of 1799005897920 in words is "one trillion, seven hundred ninety-nine billion, five million, eight hundred ninety-seven thousand, nine hundred twenty".