28058270234 has 4 divisors (see below), whose sum is σ = 42087405354. Its totient is φ = 14029135116.

The previous prime is 28058270203. The next prime is 28058270237. The reversal of 28058270234 is 43207285082.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 23486482009 + 4571788225 = 153253^2 + 67615^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28058270191 and 28058270200.

It is not an unprimeable number, because it can be changed into a prime (28058270237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7014567557 + ... + 7014567560.

Almost surely, 2^28058270234 is an apocalyptic number.

28058270234 is a deficient number, since it is larger than the sum of its proper divisors (14029135120).

28058270234 is a wasteful number, since it uses less digits than its factorization.

28058270234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14029135119.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 28058270234 in words is "twenty-eight billion, fifty-eight million, two hundred seventy thousand, two hundred thirty-four".