28531630714 has 8 divisors (see below), whose sum is σ = 42798814740. Its totient is φ = 14265359136.

The previous prime is 28531630697. The next prime is 28531630781. The reversal of 28531630714 is 41703613582.

It can be written as a sum of positive squares in 2 ways, for example, as 22280040225 + 6251590489 = 149265^2 + 79067^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143689 + ... + 278764.

Almost surely, 2^28531630714 is an apocalyptic number.

28531630714 is a deficient number, since it is larger than the sum of its proper divisors (14267184026).

28531630714 is a wasteful number, since it uses less digits than its factorization.

28531630714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456224.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 28531630714 in words is "twenty-eight billion, five hundred thirty-one million, six hundred thirty thousand, seven hundred fourteen".