28002505045 has 16 divisors (see below), whose sum is σ = 35414663040. Its totient is φ = 21197104704.

The previous prime is 28002505033. The next prime is 28002505049. The reversal of 28002505045 is 54050520082.

It is a cyclic number.

It is not a de Polignac number, because 28002505045 - 2⁷ = 28002504917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28002504998 and 28002505016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28002505049) 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, 100894 + ... + 257263.

It is an arithmetic number, because the mean of its divisors is an integer number (2213416440).

Almost surely, 2^28002505045 is an apocalyptic number.

It is an amenable number.

28002505045 is a deficient number, since it is larger than the sum of its proper divisors (7412157995).

28002505045 is a wasteful number, since it uses less digits than its factorization.

28002505045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359004.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 28002505045 in words is "twenty-eight billion, two million, five hundred five thousand, forty-five".