1306263512653 has 16 divisors (see below), whose sum is σ = 1445160517632. Its totient is φ = 1170725878000.

The previous prime is 1306263512639. The next prime is 1306263512681. The reversal of 1306263512653 is 3562153626031.

It is a cyclic number.

It is not a de Polignac number, because 1306263512653 - 2⁵ = 1306263512621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306263512623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22387908 + ... + 22446178.

It is an arithmetic number, because the mean of its divisors is an integer number (90322532352).

Almost surely, 2^{1306263512653} is an apocalyptic number.

It is an amenable number.

1306263512653 is a deficient number, since it is larger than the sum of its proper divisors (138897004979).

1306263512653 is a wasteful number, since it uses less digits than its factorization.

1306263512653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87056.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 1306263512653 in words is "one trillion, three hundred six billion, two hundred sixty-three million, five hundred twelve thousand, six hundred fifty-three".