28163265546 has 48 divisors (see below), whose sum is σ = 64020033504. Its totient is φ = 8209526688.

The previous prime is 28163265521. The next prime is 28163265551. The reversal of 28163265546 is 64556236182.

It is a junction number, because it is equal to n+sod(n) for n = 28163265495 and 28163265504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 471936 + ... + 528251.

It is an arithmetic number, because the mean of its divisors is an integer number (1333750698).

Almost surely, 2^28163265546 is an apocalyptic number.

28163265546 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28163265546 is an abundant number, since it is smaller than the sum of its proper divisors (35856767958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28163265546 is a wasteful number, since it uses less digits than its factorization.

28163265546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000243 (or 1000224 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 28163265546 in words is "twenty-eight billion, one hundred sixty-three million, two hundred sixty-five thousand, five hundred forty-six".