13785193786 has 48 divisors (see below), whose sum is σ = 26184717504. Its totient is φ = 5326618752.

The previous prime is 13785193769. The next prime is 13785193811. The reversal of 13785193786 is 68739158731.

It is a super-4 number, since 4×13785193786⁴ (a number of 42 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13785193786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33990 + ... + 169486.

It is an arithmetic number, because the mean of its divisors is an integer number (545514948).

Almost surely, 2^13785193786 is an apocalyptic number.

13785193786 is a deficient number, since it is larger than the sum of its proper divisors (12399523718).

13785193786 is a wasteful number, since it uses less digits than its factorization.

13785193786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135575 (or 135562 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 58.

The spelling of 13785193786 in words is "thirteen billion, seven hundred eighty-five million, one hundred ninety-three thousand, seven hundred eighty-six".