28624566707 has 12 divisors (see below), whose sum is σ = 31473148728. Its totient is φ = 26014243200.

The previous prime is 28624566661. The next prime is 28624566727. The reversal of 28624566707 is 70766542682.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-28624566707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28624566727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372803 + ... + 442979.

It is an arithmetic number, because the mean of its divisors is an integer number (2622762394).

Almost surely, 2^28624566707 is an apocalyptic number.

28624566707 is a deficient number, since it is larger than the sum of its proper divisors (2848582021).

28624566707 is a wasteful number, since it uses less digits than its factorization.

28624566707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73570 (or 73559 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 28624566707 in words is "twenty-eight billion, six hundred twenty-four million, five hundred sixty-six thousand, seven hundred seven".