1385304068538 has 32 divisors (see below), whose sum is σ = 3315257601600. Its totient is φ = 426247405488.

The previous prime is 1385304068521. The next prime is 1385304068593. The reversal of 1385304068538 is 8358604035831.

1385304068538 is a `hidden beast` number, since 1 + 3 + 8 + 5 + 3 + 0 + 40 + 68 + 538 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986683108 + ... + 986684511.

It is an arithmetic number, because the mean of its divisors is an integer number (103601800050).

Almost surely, 2^{1385304068538} is an apocalyptic number.

1385304068538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1385304068538 is an abundant number, since it is smaller than the sum of its proper divisors (1929953533062).

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

1385304068538 is a wasteful number, since it uses less digits than its factorization.

1385304068538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973367643 (or 1973367637 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 1385304068538 in words is "one trillion, three hundred eighty-five billion, three hundred four million, sixty-eight thousand, five hundred thirty-eight".