12773453777 has 4 divisors (see below), whose sum is σ = 14598232896. Its totient is φ = 10948674660.

The previous prime is 12773453753. The next prime is 12773453813. The reversal of 12773453777 is 77735437721.

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 not a de Polignac number, because 12773453777 - 2⁶ = 12773453713 is a prime.

It is a super-2 number, since 2×12773453777² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12773453177) 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, 912389549 + ... + 912389562.

It is an arithmetic number, because the mean of its divisors is an integer number (3649558224).

Almost surely, 2^12773453777 is an apocalyptic number.

It is an amenable number.

12773453777 is a deficient number, since it is larger than the sum of its proper divisors (1824779119).

12773453777 is an equidigital number, since it uses as much as digits as its factorization.

12773453777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824779118.

The product of its digits is 6050520, while the sum is 53.

The spelling of 12773453777 in words is "twelve billion, seven hundred seventy-three million, four hundred fifty-three thousand, seven hundred seventy-seven".