1276077829973 has 2 divisors, whose sum is σ = 1276077829974. Its totient is φ = 1276077829972.

The previous prime is 1276077829913. The next prime is 1276077829991. The reversal of 1276077829973 is 3799287706721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 925303553329 + 350774276644 = 961927^2 + 592262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1276077829973 - 2¹² = 1276077825877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276077829913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638038914986 + 638038914987.

It is an arithmetic number, because the mean of its divisors is an integer number (638038914987).

Almost surely, 2^{1276077829973} is an apocalyptic number.

It is an amenable number.

1276077829973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276077829973 is an equidigital number, since it uses as much as digits as its factorization.

1276077829973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112021056, while the sum is 68.

The spelling of 1276077829973 in words is "one trillion, two hundred seventy-six billion, seventy-seven million, eight hundred twenty-nine thousand, nine hundred seventy-three".