28623754705 has 32 divisors (see below), whose sum is σ = 42290373888. Its totient is φ = 18111340800.

The previous prime is 28623754703. The next prime is 28623754721. The reversal of 28623754705 is 50745732682.

It is not a de Polignac number, because 28623754705 - 2¹ = 28623754703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28623754703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1455790 + ... + 1475320.

It is an arithmetic number, because the mean of its divisors is an integer number (1321574184).

Almost surely, 2^28623754705 is an apocalyptic number.

It is an amenable number.

28623754705 is a deficient number, since it is larger than the sum of its proper divisors (13666619183).

28623754705 is a wasteful number, since it uses less digits than its factorization.

28623754705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22777.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 28623754705 in words is "twenty-eight billion, six hundred twenty-three million, seven hundred fifty-four thousand, seven hundred five".