28591046265 has 16 divisors (see below), whose sum is σ = 47221341696. Its totient is φ = 14756668800.

The previous prime is 28591046261. The next prime is 28591046269. The reversal of 28591046265 is 56264019582.

It is an interprime number because it is at equal distance from previous prime (28591046261) and next prime (28591046269).

It is not a de Polignac number, because 28591046265 - 2² = 28591046261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28591046261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30742596 + ... + 30743525.

It is an arithmetic number, because the mean of its divisors is an integer number (2951333856).

Almost surely, 2^28591046265 is an apocalyptic number.

It is an amenable number.

28591046265 is a deficient number, since it is larger than the sum of its proper divisors (18630295431).

28591046265 is a wasteful number, since it uses less digits than its factorization.

28591046265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61486160.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 28591046265 in words is "twenty-eight billion, five hundred ninety-one million, forty-six thousand, two hundred sixty-five".