28006240516 has 6 divisors (see below), whose sum is σ = 49010920910. Its totient is φ = 14003120256.

The previous prime is 28006240477. The next prime is 28006240609. The reversal of 28006240516 is 61504260082.

It can be written as a sum of positive squares in only one way, i.e., 27907038916 + 99201600 = 167054^2 + 9960^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3500780061 + ... + 3500780068.

Almost surely, 2^28006240516 is an apocalyptic number.

It is an amenable number.

28006240516 is a deficient number, since it is larger than the sum of its proper divisors (21004680394).

28006240516 is a wasteful number, since it uses less digits than its factorization.

28006240516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001560133 (or 7001560131 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 28006240516 in words is "twenty-eight billion, six million, two hundred forty thousand, five hundred sixteen".