28868597965 has 16 divisors (see below), whose sum is σ = 35008985088. Its totient is φ = 22851412416.

The previous prime is 28868597951. The next prime is 28868597981. The reversal of 28868597965 is 56979586882.

It is a cyclic number.

It is not a de Polignac number, because 28868597965 - 2⁷ = 28868597837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175914 + ... + 297796.

It is an arithmetic number, because the mean of its divisors is an integer number (2188061568).

Almost surely, 2^28868597965 is an apocalyptic number.

It is an amenable number.

28868597965 is a deficient number, since it is larger than the sum of its proper divisors (6140387123).

28868597965 is a wasteful number, since it uses less digits than its factorization.

28868597965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122388.

The product of its digits is 522547200, while the sum is 73.

The spelling of 28868597965 in words is "twenty-eight billion, eight hundred sixty-eight million, five hundred ninety-seven thousand, nine hundred sixty-five".