28601636485 has 16 divisors (see below), whose sum is σ = 37513193472. Its totient is φ = 20840659200.

The previous prime is 28601636467. The next prime is 28601636509. The reversal of 28601636485 is 58463610682.

It is a happy number.

It is not a de Polignac number, because 28601636485 - 2⁹ = 28601635973 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, 5424621 + ... + 5429890.

It is an arithmetic number, because the mean of its divisors is an integer number (2344574592).

Almost surely, 2^28601636485 is an apocalyptic number.

It is an amenable number.

28601636485 is a deficient number, since it is larger than the sum of its proper divisors (8911556987).

28601636485 is a wasteful number, since it uses less digits than its factorization.

28601636485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854564.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 28601636485 in words is "twenty-eight billion, six hundred one million, six hundred thirty-six thousand, four hundred eighty-five".