1386504716538 has 48 divisors (see below), whose sum is σ = 2872357519680. Its totient is φ = 446165282880.

The previous prime is 1386504716533. The next prime is 1386504716561. The reversal of 1386504716538 is 8356174056831.

It is not an unprimeable number, because it can be changed into a prime (1386504716533) 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, 2064331 + ... + 2652257.

It is an arithmetic number, because the mean of its divisors is an integer number (59840781660).

Almost surely, 2^{1386504716538} is an apocalyptic number.

1386504716538 is an abundant number, since it is smaller than the sum of its proper divisors (1485852803142).

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

1386504716538 is a wasteful number, since it uses less digits than its factorization.

1386504716538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588403 (or 588372 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 1386504716538 in words is "one trillion, three hundred eighty-six billion, five hundred four million, seven hundred sixteen thousand, five hundred thirty-eight".