1385009391186 has 64 divisors (see below), whose sum is σ = 3307485260160. Its totient is φ = 428027466240.

The previous prime is 1385009391173. The next prime is 1385009391187. The reversal of 1385009391186 is 6811939005831.

1385009391186 is a `hidden beast` number, since 1 + 38 + 500 + 9 + 3 + 91 + 18 + 6 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1385009391187) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11197635 + ... + 11320646.

It is an arithmetic number, because the mean of its divisors is an integer number (51679457190).

Almost surely, 2^{1385009391186} is an apocalyptic number.

1385009391186 is an abundant number, since it is smaller than the sum of its proper divisors (1922475868974).

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

1385009391186 is a wasteful number, since it uses less digits than its factorization.

1385009391186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22518376 (or 22518370 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 1385009391186 in words is "one trillion, three hundred eighty-five billion, nine million, three hundred ninety-one thousand, one hundred eighty-six".