28561118190 has 64 divisors (see below), whose sum is σ = 75044558592. Its totient is φ = 6899244800.

The previous prime is 28561118189. The next prime is 28561118203. The reversal of 28561118190 is 9181116582.

It is a super-2 number, since 2×28561118190² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61272 + ... + 246731.

It is an arithmetic number, because the mean of its divisors is an integer number (1172571228).

Almost surely, 2^28561118190 is an apocalyptic number.

28561118190 is an abundant number, since it is smaller than the sum of its proper divisors (46483440402).

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

28561118190 is a wasteful number, since it uses less digits than its factorization.

28561118190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308305.

The product of its (nonzero) digits is 34560, while the sum is 42.

The spelling of 28561118190 in words is "twenty-eight billion, five hundred sixty-one million, one hundred eighteen thousand, one hundred ninety".