1268901186329 has 8 divisors (see below), whose sum is σ = 1457460086400. Its totient is φ = 1082164111776.

The previous prime is 1268901186269. The next prime is 1268901186337. The reversal of 1268901186329 is 9236811098621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268901186329 is a prime.

It is a super-2 number, since 2×1268901186329² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1268901186379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455454884 + ... + 455457669.

It is an arithmetic number, because the mean of its divisors is an integer number (182182510800).

Almost surely, 2^{1268901186329} is an apocalyptic number.

It is an amenable number.

1268901186329 is a deficient number, since it is larger than the sum of its proper divisors (188558900071).

1268901186329 is an equidigital number, since it uses as much as digits as its factorization.

1268901186329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910912759.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 1268901186329 in words is "one trillion, two hundred sixty-eight billion, nine hundred one million, one hundred eighty-six thousand, three hundred twenty-nine".