1428523859880 has 384 divisors, whose sum is σ = 5079244060800. Its totient is φ = 346061776896.

The previous prime is 1428523859831. The next prime is 1428523859887. The reversal of 1428523859880 is 889583258241.

1428523859880 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 5 + 2 + 38 + 598 + 8 + 0 = 666.

It is a super-2 number, since 2×1428523859880² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1428523859887) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 597957726 + ... + 597960114.

It is an arithmetic number, because the mean of its divisors is an integer number (13227198075).

Almost surely, 2^{1428523859880} is an apocalyptic number.

1428523859880 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 1428523859880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2539622030400).

1428523859880 is an abundant number, since it is smaller than the sum of its proper divisors (3650720200920).

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

1428523859880 is a wasteful number, since it uses less digits than its factorization.

1428523859880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4386 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 63.

The spelling of 1428523859880 in words is "one trillion, four hundred twenty-eight billion, five hundred twenty-three million, eight hundred fifty-nine thousand, eight hundred eighty".