1269979094253 has 4 divisors (see below), whose sum is σ = 1693305459008. Its totient is φ = 846652729500.

The previous prime is 1269979094207. The next prime is 1269979094261. The reversal of 1269979094253 is 3524909799621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1269979094253 is a prime.

It is a super-2 number, since 2×1269979094253² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269979044253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211663182373 + ... + 211663182378.

It is an arithmetic number, because the mean of its divisors is an integer number (423326364752).

Almost surely, 2^{1269979094253} is an apocalyptic number.

It is an amenable number.

1269979094253 is a deficient number, since it is larger than the sum of its proper divisors (423326364755).

1269979094253 is an equidigital number, since it uses as much as digits as its factorization.

1269979094253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423326364754.

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 1269979094253 in words is "one trillion, two hundred sixty-nine billion, nine hundred seventy-nine million, ninety-four thousand, two hundred fifty-three".