1285847890160 has 80 divisors (see below), whose sum is σ = 3071091178656. Its totient is φ = 500324834304.

The previous prime is 1285847890157. The next prime is 1285847890163. The reversal of 1285847890160 is 610987485821.

It is an interprime number because it is at equal distance from previous prime (1285847890157) and next prime (1285847890163).

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1285847890160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285847890163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13678679 + ... + 13772361.

Almost surely, 2^{1285847890160} is an apocalyptic number.

1285847890160 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 1285847890160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535545589328).

1285847890160 is an abundant number, since it is smaller than the sum of its proper divisors (1785243288496).

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

1285847890160 is a wasteful number, since it uses less digits than its factorization.

1285847890160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98370 (or 98364 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 59.

The spelling of 1285847890160 in words is "one trillion, two hundred eighty-five billion, eight hundred forty-seven million, eight hundred ninety thousand, one hundred sixty".