4189727289840 has 160 divisors (see below), whose sum is σ = 13617092307456. Its totient is φ = 1063618913280.

The previous prime is 4189727289763. The next prime is 4189727289889. The reversal of 4189727289840 is 489827279814.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633879 + ... + 2963318.

Almost surely, 2^{4189727289840} is an apocalyptic number.

4189727289840 is a gapful number since it is divisible by the number (40) 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 4189727289840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6808546153728).

4189727289840 is an abundant number, since it is smaller than the sum of its proper divisors (9427365017616).

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

4189727289840 is a wasteful number, since it uses less digits than its factorization.

4189727289840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597447 (or 3597441 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 69.

The spelling of 4189727289840 in words is "four trillion, one hundred eighty-nine billion, seven hundred twenty-seven million, two hundred eighty-nine thousand, eight hundred forty".