2143478016923 has 8 divisors (see below), whose sum is σ = 2176660261776. Its totient is φ = 2110530276000.

The previous prime is 2143478016919. The next prime is 2143478016961. The reversal of 2143478016923 is 3296108743412.

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 2143478016923 - 2² = 2143478016919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143478016523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58607561 + ... + 58644122.

It is an arithmetic number, because the mean of its divisors is an integer number (272082532722).

Almost surely, 2^{2143478016923} is an apocalyptic number.

2143478016923 is a deficient number, since it is larger than the sum of its proper divisors (33182244853).

2143478016923 is a wasteful number, since it uses less digits than its factorization.

2143478016923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117251965.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 2143478016923 in words is "two trillion, one hundred forty-three billion, four hundred seventy-eight million, sixteen thousand, nine hundred twenty-three".