1268895068963 has 4 divisors (see below), whose sum is σ = 1270868467848. Its totient is φ = 1266921670080.

The previous prime is 1268895068957. The next prime is 1268895068977. The reversal of 1268895068963 is 3698605988621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268895068963 is a prime.

It is a super-2 number, since 2×1268895068963² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268895068663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 986698478 + ... + 986699763.

It is an arithmetic number, because the mean of its divisors is an integer number (317717116962).

Almost surely, 2^{1268895068963} is an apocalyptic number.

1268895068963 is a deficient number, since it is larger than the sum of its proper divisors (1973398885).

1268895068963 is an equidigital number, since it uses as much as digits as its factorization.

1268895068963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973398884.

The product of its (nonzero) digits is 268738560, while the sum is 71.

The spelling of 1268895068963 in words is "one trillion, two hundred sixty-eight billion, eight hundred ninety-five million, sixty-eight thousand, nine hundred sixty-three".