28061058488 has 32 divisors (see below), whose sum is σ = 53879256000. Its totient is φ = 13697249280.

The previous prime is 28061058469. The next prime is 28061058497. The reversal of 28061058488 is 88485016082.

It is a happy number.

It is a super-2 number, since 2×28061058488² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193193 + ... + 305688.

It is an arithmetic number, because the mean of its divisors is an integer number (1683726750).

Almost surely, 2^28061058488 is an apocalyptic number.

It is an amenable number.

28061058488 is a deficient number, since it is larger than the sum of its proper divisors (25818197512).

28061058488 is a wasteful number, since it uses less digits than its factorization.

28061058488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499055 (or 499051 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 50.

The spelling of 28061058488 in words is "twenty-eight billion, sixty-one million, fifty-eight thousand, four hundred eighty-eight".