1276642168113 has 32 divisors (see below), whose sum is σ = 1923281124352. Its totient is φ = 747819475200.

The previous prime is 1276642168033. The next prime is 1276642168169. The reversal of 1276642168113 is 3118612466721.

It is not a de Polignac number, because 1276642168113 - 2¹⁶ = 1276642102577 is a prime.

It is a super-2 number, since 2×1276642168113² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1276642168513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8581570 + ... + 8729067.

It is an arithmetic number, because the mean of its divisors is an integer number (60102535136).

Almost surely, 2^{1276642168113} is an apocalyptic number.

1276642168113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1276642168113 is a deficient number, since it is larger than the sum of its proper divisors (646638956239).

1276642168113 is a wasteful number, since it uses less digits than its factorization.

1276642168113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17310745.

The product of its digits is 580608, while the sum is 48.

The spelling of 1276642168113 in words is "one trillion, two hundred seventy-six billion, six hundred forty-two million, one hundred sixty-eight thousand, one hundred thirteen".