12777215383 has 4 divisors (see below), whose sum is σ = 12903722568. Its totient is φ = 12650708200.

The previous prime is 12777215377. The next prime is 12777215401. The reversal of 12777215383 is 38351277721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12777215383 - 2³³ = 4187280791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12777215303) 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, 63253441 + ... + 63253642.

It is an arithmetic number, because the mean of its divisors is an integer number (3225930642).

Almost surely, 2^12777215383 is an apocalyptic number.

12777215383 is a deficient number, since it is larger than the sum of its proper divisors (126507185).

12777215383 is a wasteful number, since it uses less digits than its factorization.

12777215383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126507184.

The product of its digits is 493920, while the sum is 46.

The spelling of 12777215383 in words is "twelve billion, seven hundred seventy-seven million, two hundred fifteen thousand, three hundred eighty-three".