28611198560 has 96 divisors (see below), whose sum is σ = 81794422080. Its totient is φ = 9232515072.

The previous prime is 28611198527. The next prime is 28611198587. The reversal of 28611198560 is 6589111682.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 732305 + ... + 770384.

It is an arithmetic number, because the mean of its divisors is an integer number (852025230).

Almost surely, 2^28611198560 is an apocalyptic number.

28611198560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28611198560 is an abundant number, since it is smaller than the sum of its proper divisors (53183223520).

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

28611198560 is a wasteful number, since it uses less digits than its factorization.

28611198560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502728 (or 1502720 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 28611198560 in words is "twenty-eight billion, six hundred eleven million, one hundred ninety-eight thousand, five hundred sixty".