1386025871616 has 81 divisors (see below), whose sum is σ = 3996417221251. Its totient is φ = 461989787136.

The previous prime is 1386025871611. The next prime is 1386025871623. The reversal of 1386025871616 is 6161785206831.

It is a happy number.

The square root of 1386025871616 is 1177296.

It is a perfect power (a square), and thus also a powerful number.

1386025871616 is a `hidden beast` number, since 1 + 3 + 8 + 602 + 5 + 8 + 7 + 16 + 16 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386025871611) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 56497945 + ... + 56522471.

Almost surely, 2^{1386025871616} is an apocalyptic number.

1386025871616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1386025871616 is the 1177296-th square number.

It is an amenable number.

1386025871616 is an abundant number, since it is smaller than the sum of its proper divisors (2610391349635).

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

1386025871616 is an frugal number, since it uses more digits than its factorization.

1386025871616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49076 (or 24532 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 1386025871616 in words is "one trillion, three hundred eighty-six billion, twenty-five million, eight hundred seventy-one thousand, six hundred sixteen".