13785851443 has 24 divisors (see below), whose sum is σ = 17319951600. Its totient is φ = 10876057920.

The previous prime is 13785851411. The next prime is 13785851449. The reversal of 13785851443 is 34415858731.

It is not a de Polignac number, because 13785851443 - 2⁵ = 13785851411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (13785851449) by changing a digit.

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, 191308 + ... + 253318.

It is an arithmetic number, because the mean of its divisors is an integer number (721664650).

Almost surely, 2^13785851443 is an apocalyptic number.

13785851443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13785851443 is a deficient number, since it is larger than the sum of its proper divisors (3534100157).

13785851443 is a wasteful number, since it uses less digits than its factorization.

13785851443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62387 (or 62380 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The spelling of 13785851443 in words is "thirteen billion, seven hundred eighty-five million, eight hundred fifty-one thousand, four hundred forty-three".