28503358005 has 32 divisors (see below), whose sum is σ = 47638699776. Its totient is φ = 14525417984.

The previous prime is 28503357997. The next prime is 28503358019. The reversal of 28503358005 is 50085330582.

It is a cyclic number.

It is not a de Polignac number, because 28503358005 - 2³ = 28503357997 is a prime.

It is a super-2 number, since 2×28503358005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285439 + ... + 372131.

It is an arithmetic number, because the mean of its divisors is an integer number (1488709368).

Almost surely, 2^28503358005 is an apocalyptic number.

It is an amenable number.

28503358005 is a deficient number, since it is larger than the sum of its proper divisors (19135341771).

28503358005 is a wasteful number, since it uses less digits than its factorization.

28503358005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87677.

The product of its (nonzero) digits is 144000, while the sum is 39.

Adding to 28503358005 its reverse (50085330582), we get a palindrome (78588688587).

The spelling of 28503358005 in words is "twenty-eight billion, five hundred three million, three hundred fifty-eight thousand, five".