12428004051840 has 128 divisors (see below), whose sum is σ = 42661513994400. Its totient is φ = 3059200991232.

The previous prime is 12428004051769. The next prime is 12428004051851. The reversal of 12428004051840 is 4815040082421.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248933455 + ... + 248983374.

Almost surely, 2^{12428004051840} is an apocalyptic number.

12428004051840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12428004051840 is an abundant number, since it is smaller than the sum of its proper divisors (30233509942560).

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

12428004051840 is a wasteful number, since it uses less digits than its factorization.

12428004051840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497916864 (or 497916852 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 39.

The spelling of 12428004051840 in words is "twelve trillion, four hundred twenty-eight billion, four million, fifty-one thousand, eight hundred forty".