1386624368231 has 4 divisors (see below), whose sum is σ = 1407320254392. Its totient is φ = 1365928482072.

The previous prime is 1386624368189. The next prime is 1386624368243. The reversal of 1386624368231 is 1328634266831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1386624368231 is a prime.

It is a super-2 number, since 2×1386624368231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386624362231) 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, 10347942980 + ... + 10347943113.

It is an arithmetic number, because the mean of its divisors is an integer number (351830063598).

Almost surely, 2^{1386624368231} is an apocalyptic number.

1386624368231 is a deficient number, since it is larger than the sum of its proper divisors (20695886161).

1386624368231 is an equidigital number, since it uses as much as digits as its factorization.

1386624368231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695886160.

The product of its digits is 5971968, while the sum is 53.

The spelling of 1386624368231 in words is "one trillion, three hundred eighty-six billion, six hundred twenty-four million, three hundred sixty-eight thousand, two hundred thirty-one".