1265670678383 has 2 divisors, whose sum is σ = 1265670678384. Its totient is φ = 1265670678382.

The previous prime is 1265670678359. The next prime is 1265670678439. The reversal of 1265670678383 is 3838760765621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1265670678383 - 2⁶ = 1265670678319 is a prime.

It is a super-2 number, since 2×1265670678383² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265670678583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632835339191 + 632835339192.

It is an arithmetic number, because the mean of its divisors is an integer number (632835339192).

Almost surely, 2^{1265670678383} is an apocalyptic number.

1265670678383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265670678383 is an equidigital number, since it uses as much as digits as its factorization.

1265670678383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 1265670678383 in words is "one trillion, two hundred sixty-five billion, six hundred seventy million, six hundred seventy-eight thousand, three hundred eighty-three".