28581149170 has 32 divisors (see below), whose sum is σ = 58806373248. Its totient is φ = 9797440128.

The previous prime is 28581149029. The next prime is 28581149189. The reversal of 28581149170 is 7194118582.

It is a self number, because there is not a number n which added to its sum of digits gives 28581149170.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375894 + ... + 445486.

It is an arithmetic number, because the mean of its divisors is an integer number (1837699164).

Almost surely, 2^28581149170 is an apocalyptic number.

28581149170 is an abundant number, since it is smaller than the sum of its proper divisors (30225224078).

28581149170 is a wasteful number, since it uses less digits than its factorization.

28581149170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75474.

The product of its (nonzero) digits is 161280, while the sum is 46.

The spelling of 28581149170 in words is "twenty-eight billion, five hundred eighty-one million, one hundred forty-nine thousand, one hundred seventy".