12767353993 has 4 divisors (see below), whose sum is σ = 12769569040. Its totient is φ = 12765138948.

The previous prime is 12767353969. The next prime is 12767353997. The reversal of 12767353993 is 39935376721.

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 cyclic number.

It is not a de Polignac number, because 12767353993 - 2²⁹ = 12230483081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12767353997) 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, 1098855 + ... + 1110412.

It is an arithmetic number, because the mean of its divisors is an integer number (3192392260).

Almost surely, 2^12767353993 is an apocalyptic number.

It is an amenable number.

12767353993 is a deficient number, since it is larger than the sum of its proper divisors (2215047).

12767353993 is an equidigital number, since it uses as much as digits as its factorization.

12767353993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215046.

The product of its digits is 6429780, while the sum is 55.

The spelling of 12767353993 in words is "twelve billion, seven hundred sixty-seven million, three hundred fifty-three thousand, nine hundred ninety-three".