28373222456 has 48 divisors (see below), whose sum is σ = 55093683120. Its totient is φ = 13697280000.

The previous prime is 28373222389. The next prime is 28373222461. The reversal of 28373222456 is 65422237382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1293581 + ... + 1315331.

It is an arithmetic number, because the mean of its divisors is an integer number (1147785065).

Almost surely, 2^28373222456 is an apocalyptic number.

It is an amenable number.

28373222456 is a deficient number, since it is larger than the sum of its proper divisors (26720460664).

28373222456 is a wasteful number, since it uses less digits than its factorization.

28373222456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21936 (or 21891 counting only the distinct ones).

The product of its digits is 967680, while the sum is 44.

The spelling of 28373222456 in words is "twenty-eight billion, three hundred seventy-three million, two hundred twenty-two thousand, four hundred fifty-six".