28692585045 has 90 divisors (see below), whose sum is σ = 54406463958. Its totient is φ = 14464580832.

The previous prime is 28692585043. The next prime is 28692585073. The reversal of 28692585045 is 54058529682.

28692585045 is a `hidden beast` number, since 2 + 86 + 9 + 2 + 58 + 504 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22954068036 + 5738517009 = 151506^2 + 75753^2 .

It is not a de Polignac number, because 28692585045 - 2¹ = 28692585043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28692584982 and 28692585000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28692585043) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 64768594 + ... + 64769036.

Almost surely, 2^28692585045 is an apocalyptic number.

It is an amenable number.

28692585045 is a deficient number, since it is larger than the sum of its proper divisors (25713878913).

28692585045 is an frugal number, since it uses more digits than its factorization.

28692585045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 28692585045 in words is "twenty-eight billion, six hundred ninety-two million, five hundred eighty-five thousand, forty-five".