28378881314 has 8 divisors (see below), whose sum is σ = 48649510848. Its totient is φ = 12162377700.

The previous prime is 28378881299. The next prime is 28378881329. The reversal of 28378881314 is 41318887382.

It is an interprime number because it is at equal distance from previous prime (28378881299) and next prime (28378881329).

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, 1013531462 + ... + 1013531489.

It is an arithmetic number, because the mean of its divisors is an integer number (6081188856).

Almost surely, 2^28378881314 is an apocalyptic number.

28378881314 is a deficient number, since it is larger than the sum of its proper divisors (20270629534).

28378881314 is a wasteful number, since it uses less digits than its factorization.

28378881314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027062960.

The product of its digits is 2064384, while the sum is 53.

The spelling of 28378881314 in words is "twenty-eight billion, three hundred seventy-eight million, eight hundred eighty-one thousand, three hundred fourteen".