1269735964653 has 16 divisors (see below), whose sum is σ = 1823242571136. Its totient is φ = 781362283200.

The previous prime is 1269735964633. The next prime is 1269735964667. The reversal of 1269735964653 is 3564695379621.

It is not a de Polignac number, because 1269735964653 - 2⁸ = 1269735964397 is a prime.

It is a super-2 number, since 2×1269735964653² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269735964633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2254576 + ... + 2760902.

It is an arithmetic number, because the mean of its divisors is an integer number (113952660696).

Almost surely, 2^{1269735964653} is an apocalyptic number.

1269735964653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1269735964653 is a deficient number, since it is larger than the sum of its proper divisors (553506606483).

1269735964653 is a wasteful number, since it uses less digits than its factorization.

1269735964653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570644.

The product of its digits is 220449600, while the sum is 66.

The spelling of 1269735964653 in words is "one trillion, two hundred sixty-nine billion, seven hundred thirty-five million, nine hundred sixty-four thousand, six hundred fifty-three".