1265127764003 has 2 divisors, whose sum is σ = 1265127764004. Its totient is φ = 1265127764002.

The previous prime is 1265127763987. The next prime is 1265127764059. The reversal of 1265127764003 is 3004677215621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1265127764003 - 2⁴ = 1265127763987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1265127764083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632563882001 + 632563882002.

It is an arithmetic number, because the mean of its divisors is an integer number (632563882002).

Almost surely, 2^{1265127764003} is an apocalyptic number.

1265127764003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265127764003 is an equidigital number, since it uses as much as digits as its factorization.

1265127764003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 1265127764003 in words is "one trillion, two hundred sixty-five billion, one hundred twenty-seven million, seven hundred sixty-four thousand, three".