1276112723929 has 2 divisors, whose sum is σ = 1276112723930. Its totient is φ = 1276112723928.

The previous prime is 1276112723881. The next prime is 1276112723969. The reversal of 1276112723929 is 9293272116721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1054811161600 + 221301562329 = 1027040^2 + 470427^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276112723929 - 2⁷ = 1276112723801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1276112723969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638056361964 + 638056361965.

It is an arithmetic number, because the mean of its divisors is an integer number (638056361965).

Almost surely, 2^{1276112723929} is an apocalyptic number.

It is an amenable number.

1276112723929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276112723929 is an equidigital number, since it uses as much as digits as its factorization.

1276112723929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 52.

The spelling of 1276112723929 in words is "one trillion, two hundred seventy-six billion, one hundred twelve million, seven hundred twenty-three thousand, nine hundred twenty-nine".