1386248693472 has 144 divisors (see below), whose sum is σ = 3959268139008. Its totient is φ = 460078030080.

The previous prime is 1386248693443. The next prime is 1386248693497. The reversal of 1386248693472 is 2743968426831.

1386248693472 is a `hidden beast` number, since 1 + 3 + 8 + 62 + 48 + 69 + 3 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142276633 + ... + 142286375.

It is an arithmetic number, because the mean of its divisors is an integer number (27494917632).

Almost surely, 2^{1386248693472} is an apocalyptic number.

1386248693472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386248693472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979634069504).

1386248693472 is an abundant number, since it is smaller than the sum of its proper divisors (2573019445536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1386248693472 is a wasteful number, since it uses less digits than its factorization.

1386248693472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11853 (or 11842 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 1386248693472 in words is "one trillion, three hundred eighty-six billion, two hundred forty-eight million, six hundred ninety-three thousand, four hundred seventy-two".