28014642415 has 4 divisors (see below), whose sum is σ = 33617570904. Its totient is φ = 22411713928.

The previous prime is 28014642349. The next prime is 28014642421. The reversal of 28014642415 is 51424641082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28014642415 - 2¹⁹ = 28014118127 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 2801464237 + ... + 2801464246.

It is an arithmetic number, because the mean of its divisors is an integer number (8404392726).

Almost surely, 2^28014642415 is an apocalyptic number.

28014642415 is a deficient number, since it is larger than the sum of its proper divisors (5602928489).

28014642415 is an equidigital number, since it uses as much as digits as its factorization.

28014642415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602928488.

The product of its (nonzero) digits is 61440, while the sum is 37.

The spelling of 28014642415 in words is "twenty-eight billion, fourteen million, six hundred forty-two thousand, four hundred fifteen".