2143555772903 has 8 divisors (see below), whose sum is σ = 2247847813200. Its totient is φ = 2041288820928.

The previous prime is 2143555772899. The next prime is 2143555772923. The reversal of 2143555772903 is 3092775553412.

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 2143555772903 - 2² = 2143555772899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143555772923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506269913 + ... + 506274146.

It is an arithmetic number, because the mean of its divisors is an integer number (280980976650).

Almost surely, 2^{2143555772903} is an apocalyptic number.

2143555772903 is a deficient number, since it is larger than the sum of its proper divisors (104292040297).

2143555772903 is a wasteful number, since it uses less digits than its factorization.

2143555772903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012544161.

The product of its (nonzero) digits is 7938000, while the sum is 53.

The spelling of 2143555772903 in words is "two trillion, one hundred forty-three billion, five hundred fifty-five million, seven hundred seventy-two thousand, nine hundred three".