10143449855 has 32 divisors (see below), whose sum is σ = 15254396928. Its totient is φ = 6290380800.

The previous prime is 10143449851. The next prime is 10143449863. The reversal of 10143449855 is 55894434101.

It is not a de Polignac number, because 10143449855 - 2² = 10143449851 is a prime.

It is a Smith number, since the sum of its digits (44) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (10143449851) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 6050 + ... + 142560.

It is an arithmetic number, because the mean of its divisors is an integer number (476699904).

Almost surely, 2^10143449855 is an apocalyptic number.

10143449855 is a deficient number, since it is larger than the sum of its proper divisors (5110947073).

10143449855 is a wasteful number, since it uses less digits than its factorization.

10143449855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136727.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 10143449855 in words is "ten billion, one hundred forty-three million, four hundred forty-nine thousand, eight hundred fifty-five".