1268858909352 has 32 divisors (see below), whose sum is σ = 3180429665280. Its totient is φ = 421848650880.

The previous prime is 1268858909323. The next prime is 1268858909377. The reversal of 1268858909352 is 2539098588621.

It is a super-2 number, since 2×1268858909352² (a number of 25 digits) contains 22 as substring.

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, 69010549 + ... + 69028932.

It is an arithmetic number, because the mean of its divisors is an integer number (99388427040).

Almost surely, 2^{1268858909352} is an apocalyptic number.

1268858909352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1268858909352 is an abundant number, since it is smaller than the sum of its proper divisors (1911570755928).

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

1268858909352 is a wasteful number, since it uses less digits than its factorization.

1268858909352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138039873 (or 138039869 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 66.

The spelling of 1268858909352 in words is "one trillion, two hundred sixty-eight billion, eight hundred fifty-eight million, nine hundred nine thousand, three hundred fifty-two".