13889740205895 has 128 divisors (see below), whose sum is σ = 23905974528000. Its totient is φ = 6865893457920.

The previous prime is 13889740205879. The next prime is 13889740205897. The reversal of 13889740205895 is 59850204798831.

It is not a de Polignac number, because 13889740205895 - 2⁴ = 13889740205879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889740205897) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1398901291 + ... + 1398911219.

It is an arithmetic number, because the mean of its divisors is an integer number (186765426000).

Almost surely, 2^{13889740205895} is an apocalyptic number.

13889740205895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13889740205895 is a deficient number, since it is larger than the sum of its proper divisors (10016234322105).

13889740205895 is a wasteful number, since it uses less digits than its factorization.

13889740205895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553.

The product of its (nonzero) digits is 174182400, while the sum is 69.

The spelling of 13889740205895 in words is "thirteen trillion, eight hundred eighty-nine billion, seven hundred forty million, two hundred five thousand, eight hundred ninety-five".