28649846784 has 96 divisors (see below), whose sum is σ = 82256625360. Its totient is φ = 8815312896.

The previous prime is 28649846741. The next prime is 28649846843. The reversal of 28649846784 is 48764894682.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99477 + ... + 259220.

Almost surely, 2^28649846784 is an apocalyptic number.

28649846784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28649846784 is an abundant number, since it is smaller than the sum of its proper divisors (53606778576).

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

28649846784 is a wasteful number, since it uses less digits than its factorization.

28649846784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358735 (or 358715 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 66.

The spelling of 28649846784 in words is "twenty-eight billion, six hundred forty-nine million, eight hundred forty-six thousand, seven hundred eighty-four".