13845825819 has 24 divisors (see below), whose sum is σ = 22860065280. Its totient is φ = 7910701488.

The previous prime is 13845825817. The next prime is 13845825827. The reversal of 13845825819 is 91852854831.

13845825819 is a `hidden beast` number, since 1 + 3 + 8 + 4 + 58 + 2 + 581 + 9 = 666.

It is not a de Polignac number, because 13845825819 - 2¹ = 13845825817 is a prime.

It is a super-2 number, since 2×13845825819² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13845825817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559102 + ... + 583340.

It is an arithmetic number, because the mean of its divisors is an integer number (952502720).

Almost surely, 2^13845825819 is an apocalyptic number.

13845825819 is a deficient number, since it is larger than the sum of its proper divisors (9014239461).

13845825819 is a wasteful number, since it uses less digits than its factorization.

13845825819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33319 (or 33316 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 54.

The spelling of 13845825819 in words is "thirteen billion, eight hundred forty-five million, eight hundred twenty-five thousand, eight hundred nineteen".