28947274982 has 4 divisors (see below), whose sum is σ = 43420912476. Its totient is φ = 14473637490.

The previous prime is 28947274921. The next prime is 28947274987.

28947274982 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28947274987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7236818744 + ... + 7236818747.

It is an arithmetic number, because the mean of its divisors is an integer number (10855228119).

Almost surely, 2^28947274982 is an apocalyptic number.

28947274982 is a deficient number, since it is larger than the sum of its proper divisors (14473637494).

28947274982 is a wasteful number, since it uses less digits than its factorization.

28947274982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14473637493.

The product of its digits is 32514048, while the sum is 62.

The spelling of 28947274982 in words is "twenty-eight billion, nine hundred forty-seven million, two hundred seventy-four thousand, nine hundred eighty-two".