28934946684 has 90 divisors (see below), whose sum is σ = 87991374240. Its totient is φ = 8267123088.

The previous prime is 28934946673. The next prime is 28934946697. The reversal of 28934946684 is 48664943982.

28934946684 is a `hidden beast` number, since 2 + 8 + 9 + 3 + 494 + 66 + 84 = 666.

It is a super-2 number, since 2×28934946684² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 895404 + ... + 927155.

It is an arithmetic number, because the mean of its divisors is an integer number (977681936).

Almost surely, 2^28934946684 is an apocalyptic number.

It is an amenable number.

28934946684 is an abundant number, since it is smaller than the sum of its proper divisors (59056427556).

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

28934946684 is a wasteful number, since it uses less digits than its factorization.

28934946684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822589 (or 1822571 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 63.

The spelling of 28934946684 in words is "twenty-eight billion, nine hundred thirty-four million, nine hundred forty-six thousand, six hundred eighty-four".