28446267446228 has 24 divisors (see below), whose sum is σ = 49792594168800. Its totient is φ = 14219812332320.

The previous prime is 28446267446189. The next prime is 28446267446251. The reversal of 28446267446228 is 82264476264482.

It is a happy number.

It is a super-3 number, since 3×28446267446228³ (a number of 41 digits) contains 333 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, 419756675 + ... + 419824437.

It is an arithmetic number, because the mean of its divisors is an integer number (2074691423700).

Almost surely, 2^{28446267446228} is an apocalyptic number.

It is an amenable number.

28446267446228 is a deficient number, since it is larger than the sum of its proper divisors (21346326722572).

28446267446228 is a wasteful number, since it uses less digits than its factorization.

28446267446228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90727 (or 90725 counting only the distinct ones).

The product of its digits is 396361728, while the sum is 65.

The spelling of 28446267446228 in words is "twenty-eight trillion, four hundred forty-six billion, two hundred sixty-seven million, four hundred forty-six thousand, two hundred twenty-eight".