1386669613 has 4 divisors (see below), whose sum is σ = 1584765280. Its totient is φ = 1188573948.

The previous prime is 1386669601. The next prime is 1386669631. The reversal of 1386669613 is 3169666831.

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 1386669613 - 2²¹ = 1384572461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386669643) 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, 99047823 + ... + 99047836.

It is an arithmetic number, because the mean of its divisors is an integer number (396191320).

Almost surely, 2^1386669613 is an apocalyptic number.

It is an amenable number.

1386669613 is a deficient number, since it is larger than the sum of its proper divisors (198095667).

1386669613 is an equidigital number, since it uses as much as digits as its factorization.

1386669613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198095666.

The product of its digits is 839808, while the sum is 49.

The square root of 1386669613 is about 37238.0130109006. The cubic root of 1386669613 is about 1115.1270041070.

The spelling of 1386669613 in words is "one billion, three hundred eighty-six million, six hundred sixty-nine thousand, six hundred thirteen".