13901955187 has 4 divisors (see below), whose sum is σ = 13903917840. Its totient is φ = 13899992536.

The previous prime is 13901955167. The next prime is 13901955211. The reversal of 13901955187 is 78155910931.

13901955187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13901955187 - 2¹⁹ = 13901430899 is a prime.

It is a super-3 number, since 3×13901955187³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13901955187.

It is not an unprimeable number, because it can be changed into a prime (13901955167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970663 + ... + 984880.

It is an arithmetic number, because the mean of its divisors is an integer number (3475979460).

Almost surely, 2^13901955187 is an apocalyptic number.

13901955187 is a deficient number, since it is larger than the sum of its proper divisors (1962653).

13901955187 is an equidigital number, since it uses as much as digits as its factorization.

13901955187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962652.

The product of its (nonzero) digits is 340200, while the sum is 49.

The spelling of 13901955187 in words is "thirteen billion, nine hundred one million, nine hundred fifty-five thousand, one hundred eighty-seven".