28461426684 has 12 divisors (see below), whose sum is σ = 66409995624. Its totient is φ = 9487142224.

The previous prime is 28461426683. The next prime is 28461426691. The reversal of 28461426684 is 48662416482.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28461426683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1185892767 + ... + 1185892790.

It is an arithmetic number, because the mean of its divisors is an integer number (5534166302).

Almost surely, 2^28461426684 is an apocalyptic number.

It is an amenable number.

28461426684 is an abundant number, since it is smaller than the sum of its proper divisors (37948568940).

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

28461426684 is a wasteful number, since it uses less digits than its factorization.

28461426684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371785564 (or 2371785562 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 51.

The spelling of 28461426684 in words is "twenty-eight billion, four hundred sixty-one million, four hundred twenty-six thousand, six hundred eighty-four".