28356207034 has 4 divisors (see below), whose sum is σ = 42534310554. Its totient is φ = 14178103516.

The previous prime is 28356207023. The next prime is 28356207037. The reversal of 28356207034 is 43070265382.

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., 23438691409 + 4917515625 = 153097^2 + 70125^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (28356207037) by changing a digit.

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 as a sum of consecutive naturals, namely, 7089051757 + ... + 7089051760.

Almost surely, 2^28356207034 is an apocalyptic number.

28356207034 is a deficient number, since it is larger than the sum of its proper divisors (14178103520).

28356207034 is a wasteful number, since it uses less digits than its factorization.

28356207034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14178103519.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 28356207034 in words is "twenty-eight billion, three hundred fifty-six million, two hundred seven thousand, thirty-four".