1897955414800 has 120 divisors (see below), whose sum is σ = 4605995197440. Its totient is φ = 751503360000.

The previous prime is 1897955414791. The next prime is 1897955414819. The reversal of 1897955414800 is 84145597981.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118606800 + ... + 118622800.

It is an arithmetic number, because the mean of its divisors is an integer number (38383293312).

Almost surely, 2^{1897955414800} is an apocalyptic number.

1897955414800 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 1897955414800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2302997598720).

1897955414800 is an abundant number, since it is smaller than the sum of its proper divisors (2708039782640).

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

1897955414800 is a wasteful number, since it uses less digits than its factorization.

1897955414800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19001 (or 18990 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 61.

The spelling of 1897955414800 in words is "one trillion, eight hundred ninety-seven billion, nine hundred fifty-five million, four hundred fourteen thousand, eight hundred".