28585206130 has 32 divisors (see below), whose sum is σ = 55611433584. Its totient is φ = 10516421376.

The previous prime is 28585206107. The next prime is 28585206137. The reversal of 28585206130 is 3160258582.

It can be written as a sum of positive squares in 8 ways, for example, as 7357007529 + 21228198601 = 85773^2 + 145699^2 .

It is a super-2 number, since 2×28585206130² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28585206137) 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, 360897 + ... + 432916.

Almost surely, 2^28585206130 is an apocalyptic number.

28585206130 is a deficient number, since it is larger than the sum of its proper divisors (27026227454).

28585206130 is a wasteful number, since it uses less digits than its factorization.

28585206130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794110.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 28585206130 in words is "twenty-eight billion, five hundred eighty-five million, two hundred six thousand, one hundred thirty".