28046893630 has 32 divisors (see below), whose sum is σ = 58426813440. Its totient is φ = 9494353440.

The previous prime is 28046893597. The next prime is 28046893673. The reversal of 28046893630 is 3639864082.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 2530356 + ... + 2541415.

It is an arithmetic number, because the mean of its divisors is an integer number (1825837920).

Almost surely, 2^28046893630 is an apocalyptic number.

28046893630 is an abundant number, since it is smaller than the sum of its proper divisors (30379919810).

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

28046893630 is a wasteful number, since it uses less digits than its factorization.

28046893630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071864.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 28046893630 in words is "twenty-eight billion, forty-six million, eight hundred ninety-three thousand, six hundred thirty".