28140630386 has 16 divisors (see below), whose sum is σ = 47292854400. Its totient is φ = 12445487280.

The previous prime is 28140630379. The next prime is 28140630391. The reversal of 28140630386 is 68303604182.

It is a happy 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, 17284586 + ... + 17286213.

It is an arithmetic number, because the mean of its divisors is an integer number (2955803400).

Almost surely, 2^28140630386 is an apocalyptic number.

28140630386 is a deficient number, since it is larger than the sum of its proper divisors (19152224014).

28140630386 is a wasteful number, since it uses less digits than its factorization.

28140630386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34570849.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 28140630386 in words is "twenty-eight billion, one hundred forty million, six hundred thirty thousand, three hundred eighty-six".