28530107433618 has 24 divisors (see below), whose sum is σ = 66376168315632. Its totient is φ = 8151459266664.

The previous prime is 28530107433589. The next prime is 28530107433677. The reversal of 28530107433618 is 81633470103582.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48520590580 + ... + 48520591167.

It is an arithmetic number, because the mean of its divisors is an integer number (2765673679818).

Almost surely, 2^{28530107433618} is an apocalyptic number.

28530107433618 is an abundant number, since it is smaller than the sum of its proper divisors (37846060882014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28530107433618 is a wasteful number, since it uses less digits than its factorization.

28530107433618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97041181766 (or 97041181759 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 28530107433618 in words is "twenty-eight trillion, five hundred thirty billion, one hundred seven million, four hundred thirty-three thousand, six hundred eighteen".