28681110622 has 32 divisors (see below), whose sum is σ = 45496080000. Its totient is φ = 13522915296.

The previous prime is 28681110617. The next prime is 28681110631. The reversal of 28681110622 is 22601118682.

It is a super-2 number, since 2×28681110622² (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 15 ways as a sum of consecutive naturals, for example, 8102529 + ... + 8106067.

It is an arithmetic number, because the mean of its divisors is an integer number (1421752500).

Almost surely, 2^28681110622 is an apocalyptic number.

28681110622 is a deficient number, since it is larger than the sum of its proper divisors (16814969378).

28681110622 is a wasteful number, since it uses less digits than its factorization.

28681110622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 28681110622 in words is "twenty-eight billion, six hundred eighty-one million, one hundred ten thousand, six hundred twenty-two".