1228171848568 has 64 divisors (see below), whose sum is σ = 2730345984000. Its totient is φ = 506820188160.

The previous prime is 1228171848539. The next prime is 1228171848583. The reversal of 1228171848568 is 8658481718221.

It is a super-2 number, since 2×1228171848568² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1432105 + ... + 2123032.

It is an arithmetic number, because the mean of its divisors is an integer number (42661656000).

Almost surely, 2^{1228171848568} is an apocalyptic number.

It is an amenable number.

1228171848568 is an abundant number, since it is smaller than the sum of its proper divisors (1502174135432).

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

1228171848568 is a wasteful number, since it uses less digits than its factorization.

1228171848568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3555380 (or 3555376 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 61.

The spelling of 1228171848568 in words is "one trillion, two hundred twenty-eight billion, one hundred seventy-one million, eight hundred forty-eight thousand, five hundred sixty-eight".