1386338744266 has 48 divisors (see below), whose sum is σ = 2561933593800. Its totient is φ = 559060389888.

The previous prime is 1386338744261. The next prime is 1386338744267. The reversal of 1386338744266 is 6624478336831.

It can be written as a sum of positive squares in 4 ways, for example, as 1386320211241 + 18533025 = 1177421^2 + 4305^2 .

It is a super-2 number, since 2×1386338744266² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1386338744261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6947130 + ... + 7143898.

Almost surely, 2^{1386338744266} is an apocalyptic number.

1386338744266 is a deficient number, since it is larger than the sum of its proper divisors (1175594849534).

1386338744266 is a wasteful number, since it uses less digits than its factorization.

1386338744266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201031 (or 201024 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 61.

The spelling of 1386338744266 in words is "one trillion, three hundred eighty-six billion, three hundred thirty-eight million, seven hundred forty-four thousand, two hundred sixty-six".