28730001586 has 64 divisors (see below), whose sum is σ = 52061087232. Its totient is φ = 11715840000.

The previous prime is 28730001557. The next prime is 28730001607. The reversal of 28730001586 is 68510003782.

It is a super-2 number, since 2×28730001586² (a number of 22 digits) contains 22 as substring.

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, 3173226 + ... + 3182266.

It is an arithmetic number, because the mean of its divisors is an integer number (813454488).

Almost surely, 2^28730001586 is an apocalyptic number.

28730001586 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28730001586 is a deficient number, since it is larger than the sum of its proper divisors (23331085646).

28730001586 is a wasteful number, since it uses less digits than its factorization.

28730001586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9379.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 28730001586 in words is "twenty-eight billion, seven hundred thirty million, one thousand, five hundred eighty-six".