28214210213242 has 8 divisors (see below), whose sum is σ = 42441205732596. Its totient is φ = 14067141635712.

The previous prime is 28214210213183. The next prime is 28214210213327. The reversal of 28214210213242 is 24231201241282.

It can be written as a sum of positive squares in 2 ways, for example, as 27007967092561 + 1206243120681 = 5196919^2 + 1098291^2 .

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

It is a super-2 number, since 2×28214210213242² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28214210213198 and 28214210213207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19981734573 + ... + 19981735984.

Almost surely, 2^{28214210213242} is an apocalyptic number.

28214210213242 is a deficient number, since it is larger than the sum of its proper divisors (14226995519354).

28214210213242 is a wasteful number, since it uses less digits than its factorization.

28214210213242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39963470912.

The product of its (nonzero) digits is 24576, while the sum is 34.

The spelling of 28214210213242 in words is "twenty-eight trillion, two hundred fourteen billion, two hundred ten million, two hundred thirteen thousand, two hundred forty-two".