28231807934 has 8 divisors (see below), whose sum is σ = 46197503928. Its totient is φ = 12832639960.

The previous prime is 28231807931. The next prime is 28231807937. The reversal of 28231807934 is 43970813282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28231807931) and next prime (28231807937).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28231807931) 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, 641631977 + ... + 641632020.

It is an arithmetic number, because the mean of its divisors is an integer number (5774687991).

Almost surely, 2^28231807934 is an apocalyptic number.

28231807934 is a deficient number, since it is larger than the sum of its proper divisors (17965695994).

28231807934 is a wasteful number, since it uses less digits than its factorization.

28231807934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283264010.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 28231807934 in words is "twenty-eight billion, two hundred thirty-one million, eight hundred seven thousand, nine hundred thirty-four".