28784682270146 has 16 divisors (see below), whose sum is σ = 47198926480320. Its totient is φ = 13057080061680.

The previous prime is 28784682270137. The next prime is 28784682270167. The reversal of 28784682270146 is 64107228648782.

It is a super-2 number, since 2×28784682270146² (a number of 28 digits) contains 22 as substring.

It is a Curzon 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, 1343310281 + ... + 1343331708.

It is an arithmetic number, because the mean of its divisors is an integer number (2949932905020).

Almost surely, 2^{28784682270146} is an apocalyptic number.

28784682270146 is a deficient number, since it is larger than the sum of its proper divisors (18414244210174).

28784682270146 is a wasteful number, since it uses less digits than its factorization.

28784682270146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686642489.

The product of its (nonzero) digits is 115605504, while the sum is 65.

The spelling of 28784682270146 in words is "twenty-eight trillion, seven hundred eighty-four billion, six hundred eighty-two million, two hundred seventy thousand, one hundred forty-six".