1828861421464 has 32 divisors (see below), whose sum is σ = 4275260467200. Its totient is φ = 712543410720.

The previous prime is 1828861421441. The next prime is 1828861421473. The reversal of 1828861421464 is 4641241688281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484464824 + ... + 1484466055.

It is an arithmetic number, because the mean of its divisors is an integer number (133601889600).

Almost surely, 2^{1828861421464} is an apocalyptic number.

1828861421464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1828861421464 is an abundant number, since it is smaller than the sum of its proper divisors (2446399045736).

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

1828861421464 is a wasteful number, since it uses less digits than its factorization.

1828861421464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968930903 (or 2968930899 counting only the distinct ones).

The product of its digits is 4718592, while the sum is 55.

The spelling of 1828861421464 in words is "one trillion, eight hundred twenty-eight billion, eight hundred sixty-one million, four hundred twenty-one thousand, four hundred sixty-four".