1897769513200 has 120 divisors (see below), whose sum is σ = 4974906045456. Its totient is φ = 689955840000.

The previous prime is 1897769513161. The next prime is 1897769513207. The reversal of 1897769513200 is 23159677981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1897769513207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22631350 + ... + 22715050.

Almost surely, 2^{1897769513200} is an apocalyptic number.

1897769513200 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 1897769513200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2487453022728).

1897769513200 is an abundant number, since it is smaller than the sum of its proper divisors (3077136532256).

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

1897769513200 is a wasteful number, since it uses less digits than its factorization.

1897769513200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88883 (or 88872 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 58.

The spelling of 1897769513200 in words is "one trillion, eight hundred ninety-seven billion, seven hundred sixty-nine million, five hundred thirteen thousand, two hundred".