23829855939 has 16 divisors (see below), whose sum is σ = 36838425600. Its totient is φ = 15195849768.

The previous prime is 23829855937. The next prime is 23829855943. The reversal of 23829855939 is 93955892832.

23829855939 is a `hidden beast` number, since 2 + 38 + 2 + 9 + 8 + 5 + 593 + 9 = 666.

It is not a de Polignac number, because 23829855939 - 2¹ = 23829855937 is a prime.

It is a super-4 number, since 4×23829855939⁴ (a number of 43 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (23829855937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19186059 + ... + 19187300.

It is an arithmetic number, because the mean of its divisors is an integer number (2302401600).

Almost surely, 2^23829855939 is an apocalyptic number.

23829855939 is a deficient number, since it is larger than the sum of its proper divisors (13008569661).

23829855939 is a wasteful number, since it uses less digits than its factorization.

23829855939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38373391 (or 38373385 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 63.

The spelling of 23829855939 in words is "twenty-three billion, eight hundred twenty-nine million, eight hundred fifty-five thousand, nine hundred thirty-nine".