12673777451 has 4 divisors (see below), whose sum is σ = 12757709904. Its totient is φ = 12589845000.

The previous prime is 12673777447. The next prime is 12673777511. The reversal of 12673777451 is 15477737621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15477737621 = 37 ⋅418317233.

It is a cyclic number.

It is not a de Polignac number, because 12673777451 - 2² = 12673777447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12673777451.

It is not an unprimeable number, because it can be changed into a prime (12673737451) 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, 41966000 + ... + 41966301.

It is an arithmetic number, because the mean of its divisors is an integer number (3189427476).

Almost surely, 2^12673777451 is an apocalyptic number.

12673777451 is a deficient number, since it is larger than the sum of its proper divisors (83932453).

12673777451 is an equidigital number, since it uses as much as digits as its factorization.

12673777451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83932452.

The product of its digits is 1728720, while the sum is 50.

The spelling of 12673777451 in words is "twelve billion, six hundred seventy-three million, seven hundred seventy-seven thousand, four hundred fifty-one".