1268161123884 has 48 divisors (see below), whose sum is σ = 3022309774848. Its totient is φ = 413684048448.

The previous prime is 1268161123849. The next prime is 1268161123913. The reversal of 1268161123884 is 4883211618621.

It is a happy number.

It is a super-2 number, since 2×1268161123884² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5667294 + ... + 5886810.

It is an arithmetic number, because the mean of its divisors is an integer number (62964786976).

Almost surely, 2^{1268161123884} is an apocalyptic number.

It is an amenable number.

1268161123884 is an abundant number, since it is smaller than the sum of its proper divisors (1754148650964).

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

1268161123884 is a wasteful number, since it uses less digits than its factorization.

1268161123884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229814 (or 229812 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The spelling of 1268161123884 in words is "one trillion, two hundred sixty-eight billion, one hundred sixty-one million, one hundred twenty-three thousand, eight hundred eighty-four".