1266983753253 has 8 divisors (see below), whose sum is σ = 1689425772768. Its totient is φ = 844598784624.

The previous prime is 1266983753239. The next prime is 1266983753257. The reversal of 1266983753253 is 3523573896621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1266983753253 - 2⁴ = 1266983753237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266983753257) 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 7 ways as a sum of consecutive naturals, for example, 14210875 + ... + 14299752.

It is an arithmetic number, because the mean of its divisors is an integer number (211178221596).

Almost surely, 2^{1266983753253} is an apocalyptic number.

It is an amenable number.

1266983753253 is a deficient number, since it is larger than the sum of its proper divisors (422442019515).

1266983753253 is a wasteful number, since it uses less digits than its factorization.

1266983753253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28525443.

The product of its digits is 48988800, while the sum is 60.

The spelling of 1266983753253 in words is "one trillion, two hundred sixty-six billion, nine hundred eighty-three million, seven hundred fifty-three thousand, two hundred fifty-three".