28917524282 has 4 divisors (see below), whose sum is σ = 43376286426. Its totient is φ = 14458762140.

The previous prime is 28917524257. The next prime is 28917524287. The reversal of 28917524282 is 28242571982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28242571982 = 2 ⋅14121285991.

It can be written as a sum of positive squares in only one way, i.e., 20508817681 + 8408706601 = 143209^2 + 91699^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28917524282.

It is not an unprimeable number, because it can be changed into a prime (28917524287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7229381069 + ... + 7229381072.

Almost surely, 2^28917524282 is an apocalyptic number.

28917524282 is a deficient number, since it is larger than the sum of its proper divisors (14458762144).

28917524282 is a wasteful number, since it uses less digits than its factorization.

28917524282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14458762143.

The product of its digits is 1290240, while the sum is 50.

The spelling of 28917524282 in words is "twenty-eight billion, nine hundred seventeen million, five hundred twenty-four thousand, two hundred eighty-two".