28213425346 has 8 divisors (see below), whose sum is σ = 42334938684. Its totient is φ = 14101779120.

The previous prime is 28213425319. The next prime is 28213425349. The reversal of 28213425346 is 64352431282.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26531523225 + 1681902121 = 162885^2 + 41011^2 .

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 = 28213425299 and 28213425308.

It is not an unprimeable number, because it can be changed into a prime (28213425349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2459625 + ... + 2471068.

Almost surely, 2^28213425346 is an apocalyptic number.

28213425346 is a deficient number, since it is larger than the sum of its proper divisors (14121513338).

28213425346 is a wasteful number, since it uses less digits than its factorization.

28213425346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4933556.

The product of its digits is 276480, while the sum is 40.

The spelling of 28213425346 in words is "twenty-eight billion, two hundred thirteen million, four hundred twenty-five thousand, three hundred forty-six".