1385931935169 has 6 divisors (see below), whose sum is σ = 2001901684146. Its totient is φ = 923954623440.

The previous prime is 1385931935147. The next prime is 1385931935231. The reversal of 1385931935169 is 9615391395831.

1385931935169 is a `hidden beast` number, since 1 + 3 + 8 + 593 + 1 + 9 + 35 + 1 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1051315963569 + 334615971600 = 1025337^2 + 578460^2 .

It is not a de Polignac number, because 1385931935169 - 2¹⁵ = 1385931902401 is a prime.

It is a super-2 number, since 2×1385931935169² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1385931934169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76996218612 + ... + 76996218629.

It is an arithmetic number, because the mean of its divisors is an integer number (333650280691).

Almost surely, 2^{1385931935169} is an apocalyptic number.

It is an amenable number.

1385931935169 is a deficient number, since it is larger than the sum of its proper divisors (615969748977).

1385931935169 is a wasteful number, since it uses less digits than its factorization.

1385931935169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153992437247 (or 153992437244 counting only the distinct ones).

The product of its digits is 23619600, while the sum is 63.

The spelling of 1385931935169 in words is "one trillion, three hundred eighty-five billion, nine hundred thirty-one million, nine hundred thirty-five thousand, one hundred sixty-nine".