28611195260018 has 48 divisors (see below), whose sum is σ = 50548586455224. Its totient is φ = 12109366886400.

The previous prime is 28611195259817. The next prime is 28611195260027. The reversal of 28611195260018 is 81006259111682.

It can be written as a sum of positive squares in 4 ways, for example, as 12009669457009 + 16601525803009 = 3465497^2 + 4074497^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2929583 + ... + 8112018.

Almost surely, 2^{28611195260018} is an apocalyptic number.

28611195260018 is a deficient number, since it is larger than the sum of its proper divisors (21937391195206).

28611195260018 is a wasteful number, since it uses less digits than its factorization.

28611195260018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041947 (or 11041940 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 50.

The spelling of 28611195260018 in words is "twenty-eight trillion, six hundred eleven billion, one hundred ninety-five million, two hundred sixty thousand, eighteen".