28870543346 has 8 divisors (see below), whose sum is σ = 43306536924. Its totient is φ = 14435031040.

The previous prime is 28870543297. The next prime is 28870543357. The reversal of 28870543346 is 64334507882.

It can be written as a sum of positive squares in 2 ways, for example, as 28395957121 + 474586225 = 168511^2 + 21785^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28870543294 and 28870543303.

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, 164486 + ... + 291198.

Almost surely, 2^28870543346 is an apocalyptic number.

28870543346 is a deficient number, since it is larger than the sum of its proper divisors (14435993578).

28870543346 is a wasteful number, since it uses less digits than its factorization.

28870543346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240636.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 28870543346 in words is "twenty-eight billion, eight hundred seventy million, five hundred forty-three thousand, three hundred forty-six".