13871725905 has 8 divisors (see below), whose sum is σ = 22194761472. Its totient is φ = 7398253808.

The previous prime is 13871725897. The next prime is 13871725913. The reversal of 13871725905 is 50952717831.

It is an interprime number because it is at equal distance from previous prime (13871725897) and next prime (13871725913).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13871725905 - 2³ = 13871725897 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 462390849 + ... + 462390878.

It is an arithmetic number, because the mean of its divisors is an integer number (2774345184).

Almost surely, 2^13871725905 is an apocalyptic number.

13871725905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13871725905 is a deficient number, since it is larger than the sum of its proper divisors (8323035567).

13871725905 is an equidigital number, since it uses as much as digits as its factorization.

13871725905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924781735.

The product of its (nonzero) digits is 529200, while the sum is 48.

The spelling of 13871725905 in words is "thirteen billion, eight hundred seventy-one million, seven hundred twenty-five thousand, nine hundred five".