13899534891201 has 16 divisors (see below), whose sum is σ = 20940918859200. Its totient is φ = 9109299701664.

The previous prime is 13899534891191. The next prime is 13899534891217. The reversal of 13899534891201 is 10219843599831.

13899534891201 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 9 + 534 + 8 + 91 + 2 + 0 + 1 = 666.

13899534891201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13899534891201 - 2¹³ = 13899534883009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13899534891301) 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, 4362689836 + ... + 4362693021.

It is an arithmetic number, because the mean of its divisors is an integer number (1308807428700).

Almost surely, 2^{13899534891201} is an apocalyptic number.

It is an amenable number.

13899534891201 is a deficient number, since it is larger than the sum of its proper divisors (7041383967999).

13899534891201 is an equidigital number, since it uses as much as digits as its factorization.

13899534891201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725382925 (or 8725382919 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

Adding to 13899534891201 its sum of digits (63), we get a square (13899534891264 = 3728208²).

The spelling of 13899534891201 in words is "thirteen trillion, eight hundred ninety-nine billion, five hundred thirty-four million, eight hundred ninety-one thousand, two hundred one".